This article provides the largest collection of full forms. Learn the meanings of the most commonly used abbreviated terms in the computer hardware and networking field.
| A | Ampere |
| A | Anchor |
| A/N/K | alphabetic, numeric, katakana |
| a+ | a+ |
| a11y | accessibility |
| A2A | application-to-application |
| AA | automated attendant |
| AA | anti-aliasing |
| AAA | authentication, authorization, and accounting |
| AAB | All-to-all broadcast |
| AAC | Advanced Audio Coding |
| AAC | ATM access concentrator |
| AAL | ATM adaptation layer |
| AARP | AppleTalk Address Resolution Protocol |
| AAS | Auto Area Segmentation |
| AAT | Average Access Time |
| AAUI | Apple Attachment Unit Interface |
| ABAP | Advanced Business Application Programming |
| ABC | activity-based costing |
| ABC | Atanasoff-Berry Computer |
| ABEND | abnormal end |
| ABEND | Absent By Enforced Net Deprivation |
| ABI | application binary interface |
| ABLE | Agent Building and Learning Environment |
| ABM | activity-based management |
| ABME | asynchronous balanced mode extended |
| ABR | Automatic Baud Rate detection |
| ABR | available bit rate |
| AC | alternating current |
| AC97 | AC97 |
| ACA | Australian Communications Authority |
| ACAP | Application Configuration Access Protocol |
| ACC | Adaptive Cruise Control |
| ACC | Authorization Contract for Containers |
| ACCU | Association of C and C++ Users |
| ACD | Automatic Call Delivery |
| ACD | automatic call distributor or distribution |
| ACDI | Asynchronous Communications Device Interface |
| ACE | access control entry |
| ACE | Adobe Certified Expert |
| ACE | Advanced CMOS-ECL |
| ACE | Agile Communication Environment |
| ACEE | access control environment element |
| ACF | Advanced Communications Function |
| ACF2 | Access Control Facility 2 |
| ACG | adaptive code generation |
| ACH | automated clearinghouse |
| ACI | access control information |
| ACID | atomicity, consistency, isolation, durability |
| ACK | acknowledgement |
| ACL | Access control list |
| ACL | application connectivity link |
| ACL | Asianet Communications Limited |
| ACL | Asynchronous Connectionless Link |
| ACM | Address Complete Message |
| ACM | Association for Computing Machinery |
| ACMS | Application Control and Management System |
| ACP | array control processor |
| ACPI | advanced configuration and power interface |
| ACPI | Advanced Configuration and Power Interface |
| ACR | Allowed Cell Rate |
| ACR | attenuation-to-crosstalk ratio |
| ACRI | additional coding-related required information |
| ACROSS | Automated Cargo Release and Operations Service System |
| ACS | Affiliated Computer Services, Inc |
| ACSE | Association Control Service Element |
| ACSLS | Automated Cartridge System Library Software |
| ACT | activity |
| ACT | access control template |
| ActiveX | ActiveX |
| Activity Streams | Activity Streams |
| ACU | abstract code unit |
| AD | Active Directory |
| AD | Administrative Domain |
| Ad Hoc Network | Ad Hoc Network |
| Ada | Ada |
| ADAPT | Architecture, Design, Analysis and Planning Tool |
| ADB | Apple Desktop Bus |
| ADC | Advanced Direct Connect |
| ADC | Analog to Digital Converter |
| ADC | automated data collection |
| ADCCP | Advanced Data Communications Control Procedures |
| ADDM | Application Discovery and Dependency Mapping |
| ADDM | Automatic Database Diagnostic Monitor |
| ADE | Application Data Export |
| ADE | application development environment |
| ADF | Activity Decision Flow |
| ADF | Application Development Facility |
| ADF | automatic document feeder |
| ADI | Analog Devices, Inc. |
| ADI | Application Desktop Integrator |
| ADK | Additional Decryption Key |
| ADL | Advanced Distributed Learning |
| ADM | Agile development management |
| ADM | Application Development Manager |
| ADMD | Administration Management Domain or Administrative Management Domain |
| ADMF | Asynchronous Data Mover Facility |
| admin | ADMINISTRATOR |
| ADN | Advanced Digital Network |
| ADN | application delivery networking |
| ADO | ActiveX Data Objects |
| ADP | Accidental Damage Protection |
| ADPCM | adaptive differential pulse code modulation |
| ADS | Active Directory Service |
| ADS | Asynchrous Data Switching |
| ADSI | Active Directory Services Interface |
| ADSI | Analog Display Services Interface |
| ADSL | asymmetrical digital subscriber line |
| ADSL | Asymmetric Digital Subscriber Line |
| ADSM | ADSTAR Distributed Storage Manager |
| ADSP | AppleTalk data stream protocol |
| ADSR | Attack, Decay, Sustain, Release |
| ADSTAR | Automated Document Storage and Retrieval |
| ADT | Abstract Data Type |
| ADT | admission, discharge and transfer |
| ADT | application deployment template |
| ADTG | Advanced Data Table Gram |
| ADUC | Active Directory Users and Computers |
| Adwords | Adwords |
| AEC | Architecture, Engineering, Construction |
| AEP | AppleTalk echo protocol |
| Aero | Aero |
| AES | Advanced Encryption Standard |
| AF | Assured Forwarding |
| AF | audio frequency |
| AFAICS, AFAIK, AFAIR | As Far As I Can See/Know/Recall |
| AFC | antiferromagnetically coupled |
| AFI | Authority and Format Identifier |
| AFIS | Automated Fingerprint Identification System |
| AFK | Away From Keyboard |
| AFL | Academic Free License |
| AFM | Atomic Force Microscope |
| AFP | AppleTalk Filing protocol |
| AFP | Advanced Function Printing |
| AFP | Apple Filing Protocol |
| AGC | Automatic Gain Control |
| AGP | accelerated graphics port |
| AGP | Accelerated Graphics Port |
| AHCI | Advanced Host Controller Interface |
| AHP | analytical hierarchy process |
| AI | Action Indicator |
| AI | Adobe Illustrator |
| AI | artificial intelligence |
| AIA | Application Integration Architecture |
| AID | attention identifier |
| AIM | AOL Instant Messenger |
| AIN | Advanced Intelligent Network |
| AIO | all in one |
| AIOD | Automatic Identified Outward Dialing |
| AIP | Advanced Inspection and Prevention |
| AIR | Additive Increase Rate |
| air interface | air interface |
| air PBX | air PBX |
| AIT | Advanced Intelligent Tape |
| AIUI | As I Understand It |
| AIX | Advanced Interactive Executive |
| Ajax | Asynchronous JavaScript and XML |
| AJP | Apache JServ Protocol |
| AL PA | Arbitrated Loop Physical Address |
| ALET | access list entry token |
| ALG | Application Layer Gateway |
| ALGOL | ALGOrithmic Language |
| ALI | Application layer interface |
| ALM | Application Life Cycle Management |
| ALM | Asset Lifecycle Management |
| ALM | Asynchronous Line Multiplexer |
| ALP | Application Layer Program / Protocol |
| ALSA | Advanced Linux Sound Architecture |
| ALT | alternative |
| ALU | Alcatel-Lucent |
| ALU | arithmetic logic unit |
| always-on | always-on |
| AM | Amplitude Modulation |
| AMA | automatic message accounting |
| Amanda | (formerly) Advanced Maryland Automatic Network Disk Archiver |
| AMD | advanced micro devices |
| AMD | Active Matrix Display |
| AMD | Advanced Microchip Devices |
| AMD | architected model-driven |
| AME | Advanced Metal Evaporated |
| AMI | advanced metering |
| AMI | Alternate Mark Inversion |
| ami | Analyze, Metricate, Improve |
| AMI | Application Messaging Interface |
| AMI | infrastructure |
| AML | Anti-Money-Laundering |
| AML | Astronomical Markup Language |
| AMMA | Advanced Memory Management Architecture |
| AMP | ampere (A) |
| AMP | amplifier |
| AMP | Asymmetric Multi-Processing |
| AMPS | Advanced Mobile Phone System |
| AMR | audio modem riser |
| AMR | Audio Modem Riser |
| AMR | Automatic meter reading |
| AMRF | Action Message Retention Facility |
| AMS | access method services |
| AMS | Analog/Mixed-Signal |
| AMS | Application Management Services |
| AMT | Active Management Technology |
| AMT | address mapping table |
| AMTA | American Mobile Telecommunications Association |
| ANDF | Architecture-Neutral Distribution Format |
| Android | Android |
| ANI | Automatic Number Identification |
| Anon FTP | Anonymous FTP |
| Anonymous | Anonymous |
| ANOVA | analysis of variance |
| ANR | automatic network routing |
| ANSI | American National Standards Institute |
| antenna | antenna |
| ANX | Automotive Network Exchange |
| AOA | angle of arrival |
| AOCE | Apple Open Collaboration Environment |
| AoE | Ata Over Ethernet |
| AOF | Advanced Open File |
| AOF | application object file |
| AOL | America Online |
| AOL | Application Object Library |
| AOR | Address of Record |
| AP | access point |
| APA | all-points addressable |
| APaaS | application platform as a service |
| APACS | Association for Payment Clearing Services |
| Apart | a challenge-response system test designed to differentiate humans from automated |
| APaRT | automated packet recognition/translation |
| APC | American Power Conversion |
| APC | Antenna Phase Center |
| APC | asynchronous procedure call |
| APDU | application-layer protocol data unit |
| APF | Automated Purposing Framework |
| API | Application Programming Interface |
| API | Advanced Photonix, Inc |
| API | Application Programming Interface |
| APIPA | automatic private internet protocol addressing |
| APM | advanced power management |
| APM | Active policy management |
| APM | Advanced Power Management |
| APM | application performance management |
| APML | Attention Profiling Markup Language |
| APNIC | Asia Pacific Network Information Center |
| APO | Advanced Planner and Optimizer |
| APOP | Authenticated Post Office Protocol |
| APOT | Alternate (Additional) Point of Termination |
| app | application |
| APPC | Advanced Peer to Peer Communications |
| APPC | Advanced Program-to-Program Communication |
| applet | applet |
| APPN | Advanced Peer to Peer Networking |
| APPN | Advanced Peer to Peer Networking |
| APR | Apache Portable Runtime |
| APS | advanced planning and scheduling |
| APS | Automatic Protection Switching |
| APWG | Anti-Phishing Working Group |
| AQCB | Automated Quote Contract Billing |
| AR | Access Rate |
| AR | Augmented reality |
| ARA | Apple Remote Access |
| ARAD | architected rapid application development |
| ARAG | AntiReflection AntiGlare |
| ARC | Ames Research Center |
| ARC | Archive |
| archive | archive |
| ARCnet | Attached Resource Computer Network |
| ARCNET | Attached Resource Computer NETwork |
| ARD | Automatic Ring Down |
| ARIA | Accessible Rich Internet Applications |
| ARIN | American Registry for Internet Numbers |
| ARL | ABLE Rule Language |
| ARM | Active Registry Monitor |
| ARM | Advanced RISC Machines |
| ARM | Asynchronous Response Mode |
| ARP | address resolution protocol |
| ARP | Address Resolution Protocol |
| ARPANET | Advance Research Projects Agency Network |
| ARQ | automatic repeat request |
| ARS | Action Request System |
| ARS | automatic route selection |
| ART | Additional Reference Transmission |
| ARTS | Association for Retail Technology Standards |
| ARu | audio response unit |
| ARUP | AppleTalk update routing Protocol |
| AS | Activesync |
| AS / ASN | autonomous system (number) |
| AS/400 | Application System/400 |
| AS2 | Applicability Statement 2 |
| ASA | average speed of answer |
| ASBR | Autonomous System Boundary Router |
| ASC | Abstract Syntax Checker |
| ASCII | American Standard Code for Information Interchange |
| ASCL | Asianet Satellite Communications Limited |
| ASE | Adaptive Server Enterprise |
| ASE | application service element |
| ASF | Advanced Streaming Format |
| ASF | Automatic Sheet Feeder |
| ASIC | Application-Specific Integrated Circuit |
| ASIF | access security information field |
| ASIS | access security information subfield |
| ASK | Anomalous State of Knowledge |
| ASLR | Address Space Layout Randomization |
| ASLS | Analog Single Line Station |
| ASM | Automatic Storage Management |
| ASM | Auto-sequencing memory |
| ASML | originally ASM Lithography (ASM for Advanced Semiconductor Materials) |
| ASN | Abstract Syntax Notation |
| ASN.1 | Abstract Syntax Notation One |
| ASO | Address Supporting Organization |
| ASP | AppleTalk session protocol |
| ASP | Abstract Service Primitive |
| ASP | Active Server Pages |
| ASP | Application Server Process |
| ASP | Application Service Provider |
| ASP | Aspect Oriented Programming |
| ASP | Average Selling Price |
| ASPI | Advanced SCSI Programming Interface |
| ASPX | Active Server Pages eXtended |
| ASQ | Automated Software Quality |
| ASR | automated system recovery |
| ASR | Access Service Request |
| ASR | Automated System Recovery |
| ASR | Automatic Send and Receive |
| ASR | Automatic Speech Recognition |
| ASV | Approved Scanning Vendor |
| AT | advanced technology |
| AT | Advanced Technology |
| AT&T | American Telephone And Telegraph |
| ATA | advanced technology attachment |
| ATA | Actual Time of Arrival |
| ATA | Advanced Technology Attachment |
| ATA | Analog Telephone Adaptor |
| ATAG | Authoring Tool Accessibility Guidelines |
| ATAPI | advanced technology attachment packet interface |
| ATAPI | AT Attachment Packet Interface |
| ATB | All the Best |
| ATB | all trunks busy |
| ATCA | Advanced Telecom Computing Architecture |
| ATG | advanced technology group |
| ATG | Art Technology Group |
| ATI | Allied Telesyn International |
| ATL | Active Template Library |
| ATL | automated tape library |
| ATLAS | Authorization Token Layer Acquisition Service |
| ATM | asynchronous transfer mode |
| ATM | Adobe Type Manager |
| ATM | asynchronous transfer mode |
| ATM | At the moment |
| ATM | automated teller machine |
| ATO | assemble to order |
| Atom | Any Transport over MPLS |
| Atom | Atom |
| ATP | AppleTalk Transaction Protocol |
| ATP | AppleTalk Transaction Protocol |
| ATP | available to promise |
| ATPCO | Airline Tariff Publishing Company |
| ATRAC | Adaptive TRansform Acoustic Coding |
| ATRN | Authenticated Turn |
| ATS | Abstract Test Suite |
| ATS | Air to Surface |
| ATS | Applications Technology Satellite |
| ATSC | Advanced Television Systems Committee |
| ATTIS | AT&T Information Systems |
| ATU-C / ATU-R | ADSL Transmission Unit, Central or Remote |
| ATUL | ADSL Termination Unit Remote |
| ATVEF | Advanced TV Enhancement Forum |
| ATX | advanced technology extended |
| ATX | Advanced Technology eXtended |
| AU | Access Unit |
| AUDIT | AUtomated Data Input Terminal |
| AUI | Attachment unit interface |
| AUI | Attachment Unit Interface |
| AUIML | Abstract User Interface Markup Language |
| AUP | acceptable use policy |
| AUTOEXEC | Automatic Execution |
| AUTONEG | Autonegotiation |
| Autonomous Vehicles | Autonomous Vehicles |
| AUV | Autonomous Underwater Vehicle |
| AUX | auxiliary device |
| AV | Anti Virus |
| AV | Audio Video or Visual |
| avatar | avatar |
| AVD | alternate voice data |
| AVED | AntiVirus Emergency Discussion list |
| AVG | AVG |
| AVI | Audio/Video Interleaved |
| AVK | Application Verification Kit |
| AVS | Application Visualisation System |
| AVST | Applied Voice & Speech Technologies Inc. |
| AVVID | Architecture for Voice, Video and Integrated Data |
| AWD | Access Workflow Designer |
| AWE | Advanced WavEffects |
| AWS | Advanced Wireless Services |
| AWS | Amazon Web Services |
| AWS | Autonomous Web Services |
| AWT | Abstract Window Toolkit |
| AZERTY | AZERTY |
| b | bit |
| B | byte |
| B channel | Bearer Channel |
| B2B | business-to-business |
| B2C | business-to-consumer |
| B2E | business-to-employee |
| B8ZS | Binary Eight Zero Suppression. |
| BAA | Blanket Authorization Agreement |
| BAC | BroadCast Agent |
| BACNET | Building Automation and Control Network protocol |
| BAF | Bellcore AMA Format |
| BAI | Bank Administration Institute |
| BAM | business activity monitoring |
| BAN | Body Area Networks |
| BAPI | Business Application Programming Interface |
| bar file | broker archive file |
| Basel II | Basel Capital Accord |
| BASH | Bourne-Again SHell |
| BASIC | Beginners’ All-purpose Symbolic Instruction Code |
| BAT | Baby Advanced Technology |
| BBC | British Broadcasting Corporation |
| BBCs | buffer-to-buffer credits |
| BBN | Bolt, Beranek and Newman |
| BBP | Business-to-Business Procurement |
| BBS | Bulletin Board System |
| BC4J | Business Components For Java |
| BCB | buffer control block |
| Bcc | Blind Carbon Copy |
| BCC | Block Check Character |
| BCD | binary-coded decimal |
| BCE | Bell Canada Enterprises; |
| BCEL | Byte Code Engineering Library |
| BCI | Business Continuity Institute |
| BCM / BCMP | Business Continuity Management (Planning) |
| BCOCA | Bar Code Object Content Architecture |
| BCP | Best Current Practice |
| BCS | basic content services |
| BCUG | bilateral closed user group |
| BCV | business continuance volume |
| BCX | Basic To C Translator |
| BD | Blu-ray Disc |
| BDC | Backup Domain Controller |
| BDC | Backup Domain Controller |
| BDF | building distribution frame |
| BECN | Backward Explicit Congestion Notification |
| BEEP | Blocks Extensible Exchange Protocol |
| Bellcore | Bell Communications Research |
| BER | Basic Encoding Rules |
| BERT | Bit Error Rate Test |
| BES | BlackBerry Enterprise Server |
| BFR | Bona Fide Request |
| BFT | Binary File Transfer |
| BGA | ball grid array |
| BGAN | Broadband Global Area Network |
| BGI | Binary Gateway Interface |
| BGP | Border Gateway Protocol |
| BGP | Border Gateway Protocol |
| BGP | Border Gateway Protocol (routing protocol) |
| BGP-4 | Border Gateway Protocol-4 |
| B-HAVW | Behavioral Heuristic Analyzer in Virtual Environments |
| BHCA | busy hour call attempt |
| BHCC | busy hour call completion |
| BHLI | Broadband High Layer Information |
| BHMC | Busy Hour Minutes of Capacity |
| BHO | Browser Help Object |
| BI | business intelligence |
| BIA | business impact analysis |
| BIBOP | big bag of pages |
| BIC | bank identifier code |
| BICI | Broadband Inter-Carrier Interface |
| BiDi | Bi-Directional |
| BIDS | Business Intelligence Development Studio |
| Bin | binary |
| Binhex | BINary HEXadecimal |
| BIOD | block input/output daemon |
| BIOS | basic input/output system |
| BIOS | Basic Input/Output System |
| BIP | Bit Interleaved Parity |
| BIPS | Bank Internet Payment System |
| BIRT | Business Intelligence and Reporting Tools |
| BIST | built-in self test |
| BISUP | Broadband ISDN User’s Part |
| Bisync or BSC | Binary SYNChronous |
| Bit | Binary DigIT |
| BIT7 | Bit Seven |
| BITNET | Because It’s Time Networking |
| BITS | Background Intelligent Transfer Service |
| BITW | Bump-In-The-Wire |
| BIW | Business Information Warehouse |
| BL | BLade Server |
| BLAST | Basic Local Alignment Search Tool |
| BLISS | Broadband Local Integrated Services Solution |
| B-LLI | Broadband Low Layer Information |
| BLOB | binary large object |
| BLOG | Better Listings on Google |
| Blog / Blogger | weB LOG |
| BLS | Basic Link Service |
| BMRT | Blue Moon Rendering Tools |
| BMT | Biel Mean Time |
| BNC | Bayonet-Neill-Concelman or British Navel Connector |
| BNC | Bayone-Neill-Concelman / British Naval Connector |
| BNF | Backus-Naur Form |
| BNI | Broadband Network Interface |
| BNOS | Brocade Network OS |
| BO / BOBJ | Business Objects |
| BOA | Basic Object Adapter |
| BOB | Breakout Box |
| BOC | Bell operating company |
| BOCU-1 | Binary Ordered Compression for Unicode |
| BoD | Bandwidth on Demand |
| BOD | Business Object Document |
| BOL | Books Online |
| BOM | Beginning of Message |
| BONDING | Bandwidth on Demand Inter-Operability Group |
| boot | bootstrap |
| BOOTP | Boot Protocol |
| BOOTP | Bootstrap Protocol |
| BOPS | Billions of Processes Per Second |
| BOT | beginning of tape |
| bot / botnet | robot (network) |
| BPA | Business Process Analysis |
| BPC | Business Planning and Consolidation |
| BPDM | Business Process Definition Metamodel |
| BPDU | Bridge Protocol Data Unit |
| BPEL | Business Process Execution Language |
| BPEL4WS | Business Process Execution Language for Web Services |
| bpi | bits per inch |
| BPL | broadband over power lines |
| BPM | business process management |
| BPON | Broadband Passive Optical Network |
| BPOS | Business Productivity Online Standard Suite |
| BPP | Bluetooth Basic Printing |
| BPPM | BMC ProactiveNet Performance Management |
| bps | Bits Per Second |
| BPV | BiPolar Violation |
| BRA | Basic Rate Access |
| BRAN | Broadband Radio Access Networks |
| BRAS | Broadband Remote Access Server |
| BRE | Business rule engines |
| BREW | Binary Runtime Environment for Wireless |
| BRF | Benchmark Report Format |
| BRI | basic rate interface |
| BRI | Basic Rate Interface |
| BROUTER | Bridge-Router |
| BRR | Business Readiness Rating |
| BRZ | Bipolar Return to Zero |
| BS 7799 | British Standard 7799 |
| BSA | Business Software Alliance |
| BSC | Binary Synchronous Communication |
| BSC | Balance Score Card |
| BSC | binary synchronous communication |
| BSD | Berkeley Software Distribution |
| BSDI | Berkeley Software Design, Inc. |
| BSE | Basic Service Elements |
| BSM | Business Service Management |
| BSNL | Bharat Sanchar Nigam Limited |
| BSoD | Blue Screen of Death |
| BSP | board support package |
| BSS | Base Station System |
| BSS | Basic service set (Wi-Fi) |
| BSSID | basic service set identifier |
| BST | binary search tree |
| BT | BitTorrent |
| BTAG | Beginning Tag |
| BTAM | Basic Telecommunications Access Method |
| BTM | Benchmark Timing Methodology |
| BTO | Business technology optimization |
| BTS | Bits Per Second |
| BTW | By The Way |
| BTX | balanced technology extended |
| BTX | Balanced Technology eXtended |
| BUS | Broadcast and Unknown Server |
| BVD | Basic Virtual Disk |
| BW | bandwidth |
| BYOD | bring your own device |
| C&SI | consulting and system integration |
| C/kT | carrier-to-receiver noise density |
| C++ / CPP | C Plus Plus |
| C2A | Click-to-Action |
| C4S | command, control, communications, and computer systems |
| C64/128 | Commodore 64/128 |
| CA | Certificate Authority |
| CaaS | Communications as a Service |
| CAC | Call Admission Control |
| CAD/ CAM | Computer-Aided Design / Manufacturing |
| CAI | Common Air Interface |
| CAL | Client Access License |
| CALEA | Communications Assistance for Law Enforcement Act |
| CAM | Capital Asset Management |
| CAMA | centralized automatic message accounting |
| CAMEL | Customized Application for Mobile networks Enhanced Logic |
| CAN | Campus Area Network |
| CAN-SPAM | Controlling the Assault of Non-Solicited Pornography and |
| CAP | carrierless amplitude phase modulation |
| CAPA | CA Productivity Accelerator |
| CAPE | concurrent art-to-product environment |
| CAPI | Common Application Programming interface |
| caps | capital letters |
| CAPTCHA | Completely Automated Public Turing Test to tell Computers and Humans |
| CAR | committed access rate |
| CARE | Customer Account Record Exchange |
| CAROT | Centralized Automatic Reporting on Trunks |
| CARP | Common Address Redundancy Protocol |
| CART | command and response token |
| CAS | centralized attendant services |
| CASE | computer-aided software engineering |
| CAT | Category (e.g. CAT-5 cable) |
| CAT | Communications Authority of Thailand |
| CAT n | Category n |
| CATI | computer-aided telephone interviewing |
| CATIA | Computer Aided Three-dimensional Interactive Application |
| CATP | Caffeine Access Transport Protocol |
| CATS | Calling Card & Third Number Settlement |
| CATV | community antenna television (or Cable TV system) |
| CAV | Constant Angular Velocity |
| cB | C Beautifier |
| CBC | cipher block chaining |
| CBL | Composite Blocking List |
| CBN | common bonding network |
| CBP | Certifed Biometrics |
| CBQ | Class-Based Queuing |
| CBR | constant bit rate |
| cbr files | Comic Book Archive |
| CBT | Computer Based Training |
| CBWFQ | Class-Based Weighted Fair Queueing |
| cc | carbon copy |
| CC | closed captioning |
| CCA | Citrix Certified Administrator |
| CCAs | composite content applications |
| CCC | Clear Channel Capability |
| CCD | charged coupled device |
| CCD | Charge Coupled Device |
| CCD+ | Cash Concentration and Disbursement plus addenda |
| CCF | call control function |
| CCH | connections per circuit hour |
| CCHIT | Certification Commission for Health Information Technology |
| CCI | controlled cryptographic item |
| CCIE | Cisco Certified Internetwork Expert |
| CCIR | Comite Consultatif International des Radio Communications |
| CCIS | common-channel interoffice signaling |
| CCITT | International Telegraph and Telephone Consultative Committee |
| CCITT (obs.) | Standards organization that has been replaced by ITU-T |
| CCL | Communications Control Language |
| CCNA | Cisco Certified Network Associate |
| ccNSO | Country Code Names Supporting Organization |
| CCOW | Clinical Context Object Workgroup |
| CCP | Certified Computer Professional |
| CCPM | Critical Chain Project Management |
| CCR | channel command retry |
| CCS | Centum Call Seconds |
| CCSA | common control switching arrangement |
| CCSE | Checkpoint Certified Security Expert |
| ccTLD | country code Top-Level Domain |
| CCTV | Closed-Circuit Television |
| CD | compact disc |
| CD | Compact Disc |
| CD Table | change-data table |
| CDB | capacity database |
| CDC | call data channel |
| CDDI | Copper Distributed Data Interface |
| CDE | common desktop environment |
| CDF | Channel Definition Format |
| CDFS | compact disc file system |
| CDFS | compact disc file system |
| CDH | Customer Data Hub |
| CDI | client device identification |
| CDMA | Code Division Multiple Access |
| CDN | content-delivery network |
| CDO | care delivery organization |
| CDP | Cisco Discovery Protocol |
| CDPD | Cellular Digital Packet Data |
| CDR | call detail recording |
| CD-R | Compact Disc - Recordable |
| CD-ROM | compact disc-read-only memory |
| CD-ROM | compact disc read-only memory |
| CD-RW | compact disc-rewritable |
| CD-RW | Compact disc-rewritable |
| CDS | Correlated Double Sampling |
| CDT | C/C++ Development Tools |
| CDV | Cell Delay Variation |
| CE router | Customer edge router |
| CEA | Consumer Electronics Association |
| CEAP | cloud-enabled application platforms |
| CEBP | communication-enabled business process |
| CeCILL | CEA CNRS INRIA Logiciel Libre |
| CEF | Cisco Express Forwarding |
| CEH | Certified Ethical Hacker |
| CEI | Common Event Infrastructure |
| CEIM | Common Enterprise Information Model |
| CELL/B.E. | Cell Broadband Engine |
| cellphone | Cellular Telephone |
| CELP | code-excited linear prediction |
| CEM | customer experience management |
| CEMF | Cisco Element Management Framework |
| CEP | complex event processing |
| CEPS | Common Electronic Purse Standard |
| CER | Corporate Error Reporting |
| CERN | Conseil Europeen pour la Recherche Nucleaire |
| CERT | Computer Emergency Response Team |
| CES | Character Encoding Scheme |
| CES | Consumer Electronics Show |
| CESID | caller’s emergency service identification |
| CEVA | content-enabled vertical application |
| CF | Compact Flash |
| CFA | Circuit Facility Assignment |
| CFA | Color Filter Array |
| CFB | Ciphertext feedback |
| CFM | Code Fragment Manager |
| CFM | Cubic Feet per Minute |
| CfMD | Certified for Microsoft Dynamics |
| CFMN | Client For Microsoft Networks |
| CFV | Call For Votes |
| CG | Computer Graphics |
| CGA | Colour Graphics Adaptor |
| CGI | Common Gateway Interface |
| CGI | Conseillers en Gestion et Informatique (french) |
| CGM | Consumer-generated media |
| CGMP | Cisco Group Multicast Protocol |
| C-GREX | Chaos Game Representation Explorer |
| CHAP | Challenge Handshake Authentication Protocol |
| CHAP | Challenge Handshake Authentication Protocol |
| CHAP | Challenge-Handshake Authentication Protocol (PPP) |
| Charset | character set |
| chat | conversational hypertext access technology |
| CHIPS | Clearing House Interbank Payments System |
| ChR | channel reliability |
| cHTML | Compact Hypertext Markup Language |
| CIA | confidentiality, integrity, and availability |
| CIC | circuit identification code |
| CICS | Customer Information Control System |
| CIDR | Classless Inter Domain Routing |
| CIDR | Classless Inter-Domain Routing |
| CIDR | Classless Internet Domain Routing |
| CIE | Commission Internationale de l’Eclairage |
| CIFS | Common Internet File System |
| CIK | crypto-ignition key |
| CIM | Common Information Model |
| CINDER | Cyber Insider Threat |
| CIO | chief information officer |
| CIP | Common Industrial Protocol |
| CIPA | Children’s Internet Protection Act |
| CiR | circuit reliability |
| CIR | committed information rate |
| CIR | Committed Information Rate (Frame Relay) |
| CIS | clinical information system |
| CISC | Complex Instruction Set Computer |
| CISO | chief information security officer |
| CISSP | Certified Information Systems Security Professional |
| CIX | Commercial Internet Exchange |
| CJK / CJKV | Chinese, Japanese, and Korean (Vietnamese) |
| CKD | count key data |
| CKO | chief knowledge officer |
| CLA | Corporate License Agreement |
| CLASS | Custom Local Area Signaling Services |
| CLEC | Competitive Local Exchange Carrier |
| CLI | Call Level Interface |
| CLI | Calling Line Identification |
| CLI | command line interface |
| CLI | Command line interpreter |
| CLIPS | C Language Integrated Production System |
| CLLI | Common Language Location Identifier |
| CLM | Contract lifecycle management |
| CLNP | ConnectionLess Network Protocol |
| CLOB | character large object |
| CLR | Cell Loss Ratio |
| CLR | common language runtime |
| CLTP | ConnectionLess Transport Protocol |
| CLUSRCVR | cluster-receiver channel |
| CLUSSDR | cluster-sender channel |
| CLUT | Color LookUp Table |
| CLV | Constant Linear Velocity |
| CMA | Circular Mil Area |
| CMC | computer-mediated communication |
| CMDB | configuration management database |
| CME | Common Malware Enumeration |
| CMIP | Common Management Information Protocol |
| CMIS | common management information service |
| CMIS | Content Management Interoperability Services |
| CMM | Capability Maturity Model |
| CMOS | complementary metal-oxide semiconductor |
| CMOS | complementary metal-oxide semiconductor |
| CMOT | CMip Over Tcp |
| CMRR | common-mode rejection ratio |
| CMRS | Commercial Mobile Radio Service |
| CMS | Color management system |
| CMS | content management system |
| CMTS | cable modem termination system |
| CNA | Converged Network Adapter |
| CNAM | Caller ID With Name |
| CNAME | Canonical name |
| CNE | Certified Novell Engineer (also Certified Network Engineer) |
| CNGI | China’s Next Generation Internet |
| CNN | Cable News Network |
| CNN | composite network node |
| CNR | communication network riser |
| CNR | Carrier to Noise Ratio |
| CNR | combat-net radio |
| CO | central office |
| CoA | Care Of Address |
| COAM | customer owned and maintained |
| coax | coaxial (cable) |
| COBIT | Control Objectives for Information and related Technologies |
| COBOL | Common Business Orientated Language |
| COCOMO | COnstructive COst MOdel |
| COD | Call of Duty |
| COD | confirm on delivery |
| COD | Connection Oriented Data |
| CoDA | Context Delivery Architecture |
| CODEC | coder/decoder or compressor-decompressor |
| COE | Component Object modEl |
| COEs | centers of excellence |
| COIN | Community Of Interest Network |
| COLD | computer output to laserdisc |
| colo | co-location |
| COM | communications port |
| COM | Component Object Model |
| COM | computer output to microfiche |
| com (.com) | commercial |
| COM1 | communication port 1 |
| COMDEX | Computer Dealers Expo |
| COMPAQ | COMPatibilty And Quality |
| COMPARE | Compliance Progress and Readiness |
| COMSAT | Communications Satellite Corporation |
| COOL | C++ Object Oriented Language |
| COOP | Continuity of Operations Plan |
| COPPA | Children’s Online Privacy Protection Act |
| COPS | Common Open Policy Service |
| COPS | Communications Outsourcing and Professional Services |
| COR | central outdoor router |
| CORBA | Common Object Request Broker Architecture |
| CORE | COMPARE Operational Readiness Evaluation |
| CORS | Continuously Operating Reference Station |
| CoS | class of service |
| COS | Cloud Optimized Storage |
| COTS | commercial off-the-shelf |
| COW | Copy-On-Write |
| CPA | Cost Per Action |
| CPAN | Comprehensive Perl Archive Network |
| cPanel | control panel |
| CPC | Calling Party Control |
| CPC | Cost Per Click |
| CPE | Customer premises equipment |
| CPF | Cloud Provisioning Fabric |
| cpi | characters per inch |
| CPLD | Complex Programmable Logic Device |
| CPM | corporate performance management |
| CPN | calling party number |
| CPNI | Customer Proprietary Network Information |
| CPOE | Computerized Provider Order Entry |
| CPRM | Content Protection for Removable Media |
| cps | Characters Per Second |
| CPS | Continuous Protection Server |
| CPU | central processing unit |
| CPU | Call Pick Up |
| CPU | Central processing Unit |
| CPU | Critical Patch Update |
| CRACK | Challenge/Response Authentication of Cryptographic Key |
| CRC | Cyclic Redundancy Check |
| CRC | Cyclical redundancy check |
| CRC-16-CCITT | Cyclical redundancy check (X.25, HDLC) |
| CRIMM | continuity-rambus inline memory module |
| CRL | certificate revocation list |
| CRLF | carriage return, line feed |
| CRM | Customer Relationship Management |
| CRMB | Customer Reference Material Database |
| cROI | companywide ROI |
| CRR | Continuous Remote Replication |
| CRT | cathode-ray tube |
| CRT | Cathode Ray Tube |
| CRUD | Create, Read, Update, Delete |
| crypto | Cryptography |
| CS | Computer science |
| CS | Creative Suite |
| CSA | cloud |
| CSA | Communications Streaming Architecture |
| CSA | Composite Services Architecture |
| CSA | service agreements |
| CSC | card security code |
| CSC | Circuit Switched Cellular |
| CSC | Computer Sciences Corporation |
| CSC | Content Security and Control |
| CSCF | call session control function |
| CSCW | computer supported co-operative work |
| CSD | Cisco Secure Desktop |
| CSE | custom search engine |
| Csel | Cable Select |
| CSFs | critical success factors |
| CSG | Communications Services Group |
| CSMA/CA | Carrier sense multiple access / collision avoidance |
| CSMA/CA | Carrier Sense Multiple Access/Collision Avoidance |
| CSMA/CD | Carrier sense multiple access / collision detection |
| CSMA/CD | Carrier Sense Multiple Access with Collision Detection |
| CSO | chief sourcing officer |
| CSO | Cold Start Only |
| CSP | Chip-scale packaging |
| CSP | Communications service providers |
| CSP | Crystal Server Pages |
| CSS | Cascading Style Sheet |
| CSS-P | cascading style sheet positioning |
| CST | Consolidated Service Test |
| CSU | Channel service unit |
| CSU | Certificate Signing Unit |
| CSU | Channel Service Unit |
| CSU/DSU | Channel service unit / data service unit |
| CSV | Circuit Switched Voice |
| CSV | comma separated values |
| CSW | channel status word |
| CT | China Telecom |
| CT | Contone |
| CTCp | Client-To-Client-Protocol |
| CTD | Cell Transfer Delay |
| CTI | computer-telephony integration |
| CTO | chief technology officer |
| CTP | capable to promise |
| CTR | Click-Through Rate |
| ctrl | control |
| CTS | clear to send |
| CTS | common transport semantics |
| CTT | China Tietong Telecommunications |
| CTX | Commited to Excellence |
| CUG | closed user group |
| CUoD | Capacity Upgrade on Demand |
| CUPS | Common Unix Printing System |
| CVP | Content Vectoring Protocol |
| CVS | Computer Vision Syndrome |
| CVS | Concurrent Versions System |
| CVSD | Continuous Variable Slope Delta modulation |
| CVV2 / CVC / CVC2 | Card Verification Value 2 / Card Verification Code /Card |
| CYMK | cyan, magenta, yellow, black |
| D&I | Drop And Insert |
| D2D | disk-to-disk |
| D2D2T | disk-to-disk-to-tape |
| DA | Destination Address |
| DAA | Distributed Application Architecture |
| DaaS | desktops-as-a-service |
| DAB | Digital Audio Broadcast |
| DAC | discretionary access control |
| DAC | digital-to-analog converter |
| DAC / DACL | Discretionary Access Control List |
| DACS | Digital Access and Cross Connect System |
| DAE | Disk Array Enclosure |
| Daemon | Disk And Execution MONitor |
| DAFS | Direct Attached File System |
| DAL | Dedicated Advertiser Location |
| DAM | Database Activity Monitoring |
| DAM | Digital Asset Management |
| DAMA | demand assigned multiple access |
| DAML | DARPA Agent Markup Language |
| DAO | Disk-At-Once |
| DAP | Directory Access Protocol |
| DAR | Data at rest |
| DAR | Disk ARchive |
| DARPA | Defense Advanced Research Project Agency |
| DAS | Dual attachment stations |
| DAS | direct-attached storage |
| DAS | distributed antenna system |
| DASH | Desktop and mobile Architecture for System Hardware |
| DAST | Dynamic Application Security Testing |
| DAT | Digital Audio Tape |
| DAT | digital audio tape |
| DAVID | Digital Audio Video Interactive Decoder |
| DB | Database |
| db | Decibel |
| DB2 | Database 2 |
| DB-25 | serial communications D-shell connector, 25 pins |
| DB-9 | 9 pin D shell connector |
| DB9 | D sub-miniature 9 |
| DBA | database administrator |
| DBCS | Double-Byte Character Set |
| dBm | decibels milliwatt |
| DBMS | Database Management Systems |
| DBMS | Database Management System |
| DBS | direct broadcast satellite |
| DC | direct current |
| DCAP | Data Link Switching Client Access Protocol |
| DCB | Data Center Bridging |
| DCBU | D-channel backup |
| DCC | Data Country Code |
| DCC | Digital Command Control |
| DCC | Direct Client-to-Client |
| DCCP | Datagram Congestion Control Protocol |
| DCE | Data communications equipment |
| DCE | Data communications equipment |
| DCE | Distributed Computing Environment |
| d-channel / D channel | data channel |
| d-channel / D channel | delta channel |
| DCO | Device Configuration Overlay |
| DCOM | Distributed Component Object Model |
| d-commerce | digital commerce |
| DCS | Desktop color separation |
| DCT | Digital Cordless Telephone |
| DDAP | Digital Distribution of Advertising for Publications |
| DDBMS | Distributed database management system |
| DDCMP | Digital Data Communications Message Protocol |
| DDD | Data Display Debugger |
| DDE | Dynamic Data Exchange |
| DDI | Device Driver Interface |
| DDI | Direct Dialling-In |
| DDI | DNS, DHCP & IP address |
| DDL | Data Definition Language |
| DDN | Digital Data Network |
| DDNS | Dynamic Domain Name System |
| DDOS | distributed denial of service |
| DDoS | Distributed Denial of Service |
| DDP | Datagram Delivery Protocol |
| DDP | Datagram Delivery Protocol |
| DDR | double data-rate |
| DDR | double-data-rate |
| DDR RAM | double data-rate random access memory |
| DDR SDRAM | double data-rate synchronous dynamic random access memory |
| DDS | Digital data service |
| DDS | Dataphone digital service |
| DDS | digital data service |
| DDS | Digital Data Storage |
| DDSA | digital data service adapter |
| DDT | Disk-to-Disk-to-Tape |
| DEA | Data Encryption Algorithm |
| DEC | Digital Equipment Corporation |
| DEC (obs.) | Digital Equipment Corporation |
| DECT | Digital Enhanced Cordless Telecommunications |
| defrag | defragment |
| DEK | data encryption key |
| DEL | DELETE |
| Demarc | Demarcation Point |
| Demux | demultiplexer |
| DEN | Directory Enabled Network |
| DEP | Data Execution Prevention |
| DEP | dynamic enterprise publishing |
| DES | Data Encryption Standard |
| DES | Data Encryption Standard (obs. See AES) |
| DES | Dynamic Energy Saver |
| DET | Directory Entry Table |
| DFI | Design for Innovation |
| DFL | design for logistics |
| DFM | design for manufacturability |
| DFM | Device Fault Manager |
| DFM | Digital Flash Media |
| DFS | distributed file system |
| DGC | Distributed garbage collection |
| DHA | directory harvest attack |
| DHCP | dynamic host configuration protocol |
| DHCP | Dynamic Host Configuration Protocol |
| DHTML | Dynamic HyperText Markup Language |
| DHX | Diffie-Hellman Exchange |
| DI/DO | Dispatch In/ Dispatch Out |
| DIA | data integration and access |
| DIA | Dedicated Internet Access |
| DICOM | Digital Imaging and Communications in Medicine |
| DID | direct inward dial |
| DIF | Directory Interoperability Forum |
| DiffServ | Differentiated Services |
| Digerati | digital version of literati (Italian) |
| DIIOp | Dominio Internet Inter-Orb Protocol |
| DIMM | dual inline memory module |
| DIMM | Dual In-line Memory Module |
| DIN | Deutsche Industrie Norm |
| DIP | dual inline package |
| DIP | Dual Interface Poll |
| DIPP | Dual Inline Pin Package |
| DIR | DIRectory |
| Dirid | Directory identifier |
| DISA | Data Interchange Standards Association |
| DISA | Defense Information Systems Agency |
| Disc / Disk | DISKETTE |
| DIT | Directory Information Tree |
| DITTO | Data Interfile Transfer, Testing and Operations |
| Divx | DIgital Video Express |
| DIX | Digital, Intel , Xerox |
| DKI | Driver Kernel Interface |
| DKMS | Dynamic Kernel Module Support |
| DL | Density Line |
| DL | double-layer |
| DLC | Data Link Control |
| DLC | data link control |
| DLC | Digital Loop Carrier |
| DLCI | data link connection identifier |
| DLDP | Device Link Detection Protocol |
| DLE | data link escape |
| DLL | dynamic link library |
| DLM | data life cycle management |
| DLOS | Desktop Line-of-sight |
| DLOS | Direct Line-of-sight |
| DLP | digital light processing |
| DLP | data leak prevention |
| DLP | Digital Light Processing |
| DLPBC | Dual Loop Port Bypass Circuitry |
| DLPI | Data Link Provider Interface |
| DLR | Design Layout Record |
| DLT | digital linear tape |
| DLT | Digital Linear Tape |
| DM | Data Mining |
| DMA | direct memory access |
| DMA | Direct Memory Access |
| DMAA | Discrete Mathematics, Algorithms and Applications |
| DMB | Dhtml Menu Builder |
| DMCA | Digital Millennium Copyright Act |
| DME | distributed management environment |
| DMI | Desktop Management Interface |
| DML | Data Manipulation Language |
| DMO | Distributed Management Object |
| DMS | Digital Multiplex Systems |
| DMT | Discrete Multi-Tone |
| DMZ | demilitarized zone |
| DNA | Digital Network Architecture |
| DNA | Deoxyribonucleic acid |
| DNA | Distributed Network Architecture |
| DNIC | data network identification code |
| DNLC | Directory Name Lookup Cache |
| DNR | Digital Noise Reduction |
| DNS | domain name service or domain name server |
| DNS | Domain Name Service / Server / System |
| DNS | Domain Name System |
| DNSBL | DNS Based List, DNS Blacklist, or DNS Blocklist. |
| DNSSEC | Domain Name System SECurity extensions |
| DOA | Dead On Arrival |
| DoCoMo | Do Communication over the Mobile network |
| DOCSIS | Data-over-Cable Service Interface Specifications |
| DO-IT | Disabilities, Opportunities, Internetworking and Technology |
| Dolly | Digital Dolly |
| DOM | distributed output management |
| DOM | Document Object Model |
| DOMAIN | Distributed Operating Multi Access Interactive Network |
| DOP | Dilution Of Precision |
| DOS | disk operating system or denial of service |
| DoS | denial of service |
| DOS | Disk Operating System |
| DOV | Data-Over-Voice |
| DPA | Document Printing Application |
| DPC | Destination Point Code |
| DPF | Database Partitioning Feature |
| DPI | deep packet inspection |
| DPI | Distributed Protocal Interface |
| dpi | Dots Per Inch |
| DPMA | Dynamic Power Management Architecture |
| DPMI | Dos Protected Mode Interface |
| DPMS | display power management signaling |
| DPN | Data Packet Network |
| DPtoTP | Display Coordinates TO Tablet Coordinates |
| DPV | Distributed Partitioned View |
| DPW | Digital Pulse Wireless |
| DQM | Data Quality Manager |
| DR | disaster recovery |
| DRAC | Dell Remote Assistant Card |
| DRAM | dynamic random access memory |
| DRAM | Dynamic Random Access Memory |
| DRAM | Dynamic random-access memory |
| DRDA | Distributed Relational Database Architecture |
| DRE | Document Rendering Engine |
| DRF | Data Recovery Field |
| DRi | Disaster Recovery Institute |
| DRM | Data Relationship Management |
| DRM | digital rights management |
| DROP | delivery of real-time execution information protocol |
| DRP | Disaster Recovery Plan |
| DRP | Distribution and Replication Protocol |
| DRU | Disc Remastering Utility |
| DRW | Defect Remediation Window |
| DS | Differentiated Service |
| DS0 | Digital Subscriber Level Zero |
| DS1 | Digital Signal Level 1 |
| DSA | Digital Signature Algorithm |
| DSA | Distributed Systems Architecture |
| DSAP | Destination Service Access Point |
| DSBM | Designated Subnet Bandwidth Manager |
| DSE | Directory Services Environment |
| DSI | Dynamic Systems Initiative |
| DSL | digital subscriber line |
| DSL | Digital Subscriber Line |
| DSL | Domain-Specific Language |
| DSL | Dual Stress Liner |
| DSLAM | Digital Subscriber Line Access Multiplexor |
| DSLAM | DSL Access Multiplexer |
| DSM | dependency structure matrix |
| DSM-CC | Digital storage media command and control |
| DSML | Directory Service Markup Language |
| DSN | dealer software network |
| DSn | digital signal level n |
| DSO | data source object |
| DSOM | Distributed System Object Model |
| DSP | digital signal processor |
| DSR | Data Set Ready |
| DSR | Dynamic Source Routing |
| DSS | igital Signature Standard |
| DSSA | Distributed System Security Architecture |
| DSSS | Direct Sequence Spread Spectrum |
| DSTN | Double-layer Supertwist Nematic |
| DSTP | Data Space Transfer Protocol |
| DSU | Digital service unit |
| DSU | data service unit |
| DSU | Digital Service Unit |
| DSVD | Digital Simultaneous Voice and Data |
| DSX | Digital System Cross-connect frame |
| DTD | Document Type Definition |
| DTD | Document Type Definition |
| DTDS | Disaster Tolerant Disk Systems |
| DTE | Data terminal equipment |
| DTE | Data Terminal Equipment |
| DTM | Document Table Model |
| DTM | Dynamic synchronous Transfer Mode |
| DTMF | Data Tone Multiple Frequency |
| DTML | Document Template Mark-up Language |
| DTN | Disruption Tolerant Networking |
| DTP | Desktop publishing |
| DTR | Data Terminal Ready |
| DTS | Digital Theater System |
| DTTV | Digital Terestial Televison |
| du | disk usage |
| DUAL | Diffusing Update Algorithm |
| DUL | Dial Up List |
| DUN | Dial up networking |
| DUN | Dial-Up Networking |
| DUNS | Data Universal Numbering System |
| DUOW / DUW | distributed unit of work |
| DUPS | Digital Unbundled Port Services |
| DUV | Data Under Voice |
| DVB-H | Digital Video Broadcasting - Handhelds |
| DVBMHP | Digital Video Broadcasting Multimedia Home Platform |
| DVB-SH | Digital Video Broadcasting - Satellite services to Handhelds |
| DVCD | Double Video CD |
| DVD | digital video disc or digital versatile disc |
| DVD | Digital Versatile Disc |
| DVD-R | digital video disc-recordable |
| DVD-RAM | digital video disc-random access memory |
| DVD-ROM | digital video disc-read only memory |
| DVD-RW | digital video disc-rewritable |
| DVI | digital visual interface |
| DVI | Digital Video Interface, originally Digital Video Disc |
| DVM | Digital volt meter |
| DVMRP | Distance Vector Multicast Routing Protocol |
| DVRs | Digital video/Versatile recorders |
| DWDM | dense wave division multiplexing |
| DWF | Design Web Format |
| DWM | Desktop Windows Manager |
| DWS | Dialable Wideband Service |
| DX | DirectX / Direct X |
| dxdiag | directx diagnostics |
| DXF | Drawing Interchange Format |
| DXI | Data Exchange Interface |
| dyld | dynamic link editor |
| e- | Electronic |
| E Phone | Emergency Phones. |
| E&M | recEive and transMit (or ear and mouth) |
| E_D_TOV | error detect timeout value |
| E2E | End-to-End |
| E3 | Electronic Entertainment Expo |
| EA | Electronic Arts |
| EA | Enterprise Agreement |
| EAB | Enterprise Address Book |
| EAI | Enterprise application integration |
| EAL | Evaluation Assurance Level |
| EAM | Event Aggregation Module |
| EAP | Extensible Authentication Protocol |
| EAR | Emergency Assistance Request |
| EARL | Enhanced Address Recognition Logic |
| EAS | enterprise application server |
| EASDAQ | European Association of Securities Dealers Automated Quotations |
| EAT | End Around Test |
| EAX | Environmental Audio |
| EB | Exabyte |
| EBCDIC | Extended Binary Coded Decimal Interchange Code |
| EBIF | Enhanced TV Binary Interchange Format |
| EBML | Extensible Binary Meta Language |
| EBPP | Electronic Bill Presentation and Payment |
| EBS | E-Business Suite |
| EC2 | Elastic Compute Cloud |
| ECB | electronic code book |
| ECB | Event Control Block |
| ECC | error correction code |
| ECC | elliptic curve cryptography |
| ECC | Error Checking and Correction |
| ECEM | enterprise carbon and energy management |
| ECHS | Extended Cylinders, Heads, Sectors |
| eCI | eCommerce integrator |
| ECM | Enterprise content management |
| ECMA | European Computer Manufacturers Association |
| ECMP | Equal Cost Multipath Routing |
| ECO | Engineering Change Order |
| ECP | extended capabilities port |
| ECP | electronic check presentment |
| ECS | Extended Character Set |
| ECTF | Enterprise Computer Telephony Forum |
| ED2K | eDonkey2000 |
| EDA | event-driven architecture |
| EDC | Electronic Data Capture |
| EDC | electronic dispersion compensation |
| EDGE | Enhanced Data Rates for GSM Evolution |
| EDI | electronic data interchange |
| EDIFACT | Electronic Data Interchange For Administration, Commerce and Transport |
| e-discovery | Electronic discovery |
| EDM | Electronic Document Management |
| EDM | EMC Data Manager |
| EDO | Extended Data Output |
| edress | e-mail address |
| EDS | Electronic Data Systems |
| EDW | enterprise data warehouse |
| EEPROM | electrically erasable programmable read-only memory |
| EEPROM /EPROM | Electrical Erasable Programmable Read Only Memory |
| EF | Expedited Forwarding |
| EFI | Extensible Firmware Interface |
| EFM | Enterprise fraud and misuse management |
| EFS | encrypting file system |
| EFS | Encrypting File System |
| EFS | Error Free Seconds |
| EFT | Electronic Funds Transfer |
| EGA | Enhanced Graphics Adapter |
| EGL | Enterprise Generation Language |
| EGNOS | European Geostationary Navigation Overlay Service |
| EGP | Exterior Gateway Protocol |
| EGP | Exterior Gateway Protocol |
| EH&S | Environmental, Health and Safety |
| EHA | Ethernet Hardware Address |
| EHA | Ethernet Hardware Address (MAC address) |
| EHR | Electronic Health Record |
| EIA | Electronic Industries Association |
| EIA | Electronic Industries Alliance |
| EIA | Electronics Industry Alliance |
| EIA | enterprise information architecture |
| EIDE | enhanced integrated drive electronics |
| EIGRP | Enhanced Interior Gateway Routing Protocol |
| EII | enterprise integration information |
| EIM | Enterprise Identity Mapping |
| EIM | enterprise information management |
| EIRP | Effective Isotropic Radiated Power |
| EIS | enterprise information system |
| EISA | extended industry standard architecture |
| EIST | Enhanced Intel SpeedStep Technology |
| EJB | Enterprise JavaBeans |
| EKTS | electronic key telephone set |
| ELAN | Emulated Local Area Network |
| ELM | Expertise location and management |
| ELT | extract, load, and transform |
| EMA | Enterprise Management Associates |
| EMC | Electromagnetic Compatibility |
| EMF | ElectroMagnetic Field |
| EMF | ElectroMotive Force |
| EMI | electromagnetic interference |
| EMI | Electromagnetic interference |
| EMI | Enhanced Multilayer Image |
| EMOTICON | EMOTion ICON |
| EMP | electromagnetic pulse |
| EMPI | Enterprise Master Patient Index |
| EMR | electronic medical record |
| EMS | Enhanced Messaging Service |
| EMS | enterprise messaging system |
| EMS | Expanded Memory Specification |
| EMV | Europay-MasterCard-Visa |
| ENIW | Web-enabled Ethernet Networking Interface |
| ENQ | Enquiry |
| ENS | enterprise nervous system |
| ENTL | Electronic New Hire/Termination/Leave of Absence |
| ENUM | electronic numbering / Electronic Number Mapping system |
| ENX | European Network Exchange |
| EOF | End Of Frame (HDLC, etc.) |
| EOF | end-of-file |
| EOL | End Of Life |
| EoS / EoSDH | Ethernet over SONET / Ethernet Over SDH |
| EPABX | Electronic Private Automatic Branch Exchange |
| e-paper | Electronic paper |
| ePC | electronic product code |
| EPG(s) | electronic program guides |
| EPGs | electronic program guides |
| EPIC | Explicitly Parallel Instruction Computing |
| EPL | Ethernet Private Line |
| EPM | Enterprise Performance Management |
| EPN | Extended Port Network |
| EPO | emergency power off |
| ePO | EPolicy Orchestrator |
| EPOC | Electronic Piece of Cheese |
| EPP | enhanced parallel port |
| EPP | Enhanced Parallel Port |
| EPP | Enterprise Portal Platform |
| EPR | Electronic Patient Record |
| EPR | EndPoint Reference |
| EPROM | erasable programmable read-only memory |
| EPS | Encapsulated PostScript |
| EPS | Events Per Second |
| EPU | Energy Processing Unit |
| ERD | emergency repair disk |
| ERL | Echo Return Loss |
| ERMS | electronic records management systems |
| ERP | Enterprise resource planning |
| ERP | error recovery procedure |
| ERR | ERRor |
| eRX | e-Prescribing |
| ESA | Enthusiast System Architecture |
| ESB | enterprise service bus |
| ESCD | Extended System Configuration Data |
| ESCON | Enterprise Systems Connection |
| ESD | electrostatic discharge |
| ESDI | enhanced small device interface |
| ESDI | Enhanced Small Device Interface |
| ESE | Extensible Storage Engine |
| ESF | Extended Superframe Format |
| ESG | Enterprise Strategy Group |
| ESI | Edge Side Include |
| ES-IS | End System to Intermediate System |
| ESL | electronic shelf labels |
| ESM | Enterprise Security Manager |
| ESM | Enterprise Service Management |
| ESN | electronic serial number |
| ESP | Encapsulated Security Payload |
| ESP | estimated street price |
| ESPN | Entertainment and Sports Programming Network |
| ESRB | Entertainment Software Rating Board |
| ESS | employee self-service |
| ESS | Extended Service Set |
| ESS | Extended service set (Wi-Fi group) |
| ETA | Embedded Transport Acceleration |
| ETAS | Encrypted Transaction Audit System |
| ETC | Enhanced Throughput Cellular |
| etc | Essential Text Configuration |
| ETL | Extract, Transform and Load |
| ETN | electronic tandem network |
| ETRN | Extended Turn |
| ETSI | European Telecommunications Standardisation Institute |
| ETTb/ETTh | Ethernet To The Business/Home |
| ETX | end-of-text character |
| EUC | Extended UNIX Code |
| EUEM | end user experience monitoring |
| EULA | End-User License Agreement |
| EUP | Enterprise Unified Process |
| Eutelsat | European Telecommunications Satellite Organization |
| EVA | Enterprise Virtual Array |
| EVDO | evolution data optimized or evolution data only |
| EVDO | Evolution Data Only/Evolution Data Optimized |
| EVGA | extended video graphics adapter/array |
| EWS | Early Warning Status |
| EX | exchange |
| EXE | EXEcutable |
| EXIF | EXchangeable Image File format |
| FA | Foreign Agent |
| FACCH | Fast Associated Control Channel |
| FAN | File Area Network |
| FAQ | Frequently Asked Questions |
| FAR | false acceptance rate |
| FARE | Film Automatic Retouching and Enhancement |
| FASS | Fast Access Station Switching |
| FAST | Federation Against Software Theft |
| FAST | File And Settings Transfer |
| FAT | file allocation table |
| FAT | file allocation table |
| FAT12 | 12-bit file allocation table |
| FAT16 | 16-bit file allocation table |
| FAT32 | 32-bit file allocation table |
| favicon | favorites icon |
| FAW | Frame Alignment Word |
| FAX | FACSimile |
| FBA | fixed-block architecture |
| FBD | Fully Buffered DIMM |
| FBGA | Fine-pitch Ball Grid Array |
| FBSS | Fast Base Station Switching |
| FC / FCS | Fibre Channel (Standard) |
| FC-AL | Fibre Channel Arbitrated Loop |
| FCC | Federal Communications Commission |
| FCC | Federal Communications Commission (US) |
| FCCH | Frequency Correction Channel |
| FCD | Floating car data or floating cellular data |
| FCH | Frame Control Header |
| FCIP | Fibre Channel over Internet Protocol |
| FCL | Framework Class Library |
| FCoE | Fibre Channel over Ethernet |
| FCP | Fibre Channel Protocol |
| FCPGA | Flip Chip Pin Grid Array |
| FCS | Fluorescence Correlation Spectroscopy |
| FCS | Frame Check Sequence |
| FCS | Frame check sequence (Ethernet) |
| FCSI | Fibre Channel Systems Initiative |
| FDD | floppy disk drive |
| FDD | Frequency Division Duplex |
| FDDI | Fiber Distributed Data Interface |
| FDDI | Fiber Distributed Data Interface |
| FDE | Full-disk encryption |
| FDM | Feature Download Management |
| FDM | Frequency Division Multiplexing |
| FDM | fused deposition modeling |
| FDS | Fraud Detection System |
| FDX | Full Duplex |
| FE | Fast Ethernet |
| FE | field engineer |
| FEC | Fast Etherchannel |
| FEC | Forward Error Correction |
| FECN | Forward Explicit Congestion Notification |
| FEFO | First Ended, First Out |
| FEMA | Failure mode and effects analysis |
| FEP | Front-End Processor |
| FER | Frame Erasure/Error Rate |
| FERPA | Family Educational Rights and Privacy Act |
| FERPA | Family Educational Rights and Privacy Act |
| FET | field effect transistor |
| FEXT | Far End Cross Talk |
| FFD | Flicker Free Display |
| FFPF | fairly fast packet filter |
| FFT | Fast Fourier Transform |
| FGA/B/C/D | feature group A/B/C/D |
| FHS | Fan Heat-Sink |
| FHSS | Frequency Hopped Spread Spectrum |
| FICON | Fiber Connection |
| FIDNET | Federal Intrusion Detection Network |
| FIFO | first in, first out |
| FIGS | Figures Shift |
| FIM | federated identity management |
| FINDDEST | Find Destination |
| FINRA | Financial Industry Regulatory Authority |
| FiOS | Fiber Optic Service |
| FIPS | Federal Information Processing Standards |
| FIR | Finite Impulse Response |
| FIRST | Forum of Incident Response and Security Teams |
| FISMA | Federal Information Security Management Act |
| FIX | Financial Information Exchange |
| FLAC | Free Lossless Audio Codec |
| FLAG | Fiber Link Around the Globe |
| FLOGI | fabric login |
| FLOPS | Floating Point Operations Per Second |
| FM | Frequency Modulation |
| FM-200 | Firemaster / Fire Master 200 |
| FMA99 | Financial Services Modernization Act of 1999 |
| FMC | fixed-mobile convergence |
| FMEA | Failure Mode and Effects Analysis |
| FMH | function management header |
| FMV | Full-Motion Video |
| Fn | Function (referring to the function key on a laptop) |
| FOC | Field Oriented Control |
| FoIP | Fax Over Internet Protocol |
| FOIRL | FiberOptic InterRepeater Link |
| FOMA | Freedom of Mobile Multimedia Access |
| FOP | Formatting Objects Processor |
| FORTRAN | formula translation |
| FOSS | Free and open source software |
| FOSSIL | Fido Opus Seadog Standard Interface Layer |
| FOT | Fiber Optic Terminal |
| FOTS | Fiber Optic Transmission System |
| FPA | Floating Point Accelerator |
| FPA | Function point analysis |
| FPE | Forefront Protection for Exchange |
| FPGA | Field Programmable Gate Array |
| FPM | fast page-mode |
| FPM | Fast Page Mode |
| FpML | Financial Products Markup Language |
| FPP | Full Product Package |
| FPS | Flexible Payments Service |
| FPS | frames per second |
| FPU | floating point unit |
| FQDN | fully qualified domain name |
| FQDN | Fully Qualified Domain Name |
| FR | frame relay |
| FRAD | Frame Relay Access Device |
| FRAG (21) | Financial Reporting & Auditing Group Guidelines |
| FRDS | Failure Resistant Data Systems |
| FRED | Fair Random Early Detection |
| FreeBSD | Free Berkeley Software Distribution |
| freeware | free software |
| FRR | fast retransmit and recovery |
| FRS | File Replication Service |
| FRU | field replaceable unit |
| FRU | field-replaceable unit |
| FSAA | Full Screen Anti-Aliasing |
| FSAM | Federated Storage Area Management |
| FSB | frontside bus |
| FSM | finite state machine |
| FSML | Financial Services Markup Language |
| FSMO | Flexible Single Master Operations |
| FSN | Full-Service Network |
| FSPF | fibre channel shortest path first |
| FSS | File system server |
| FSSS | Fast Serving Station Switching |
| FSTC | Financial Services Technology Consortium |
| FT | P file transfer protocol |
| FTA | failure to acquire |
| FTAM | File Transfer Access and Management |
| FTAM | File Transfer, Access, and Management |
| FTBFS | Fails To Build From Source |
| FTDS | Failure Tolerant Data Systems |
| FTL | Flash Translation Laye |
| FTNS | Fixed Telecommunication Network Services |
| FTP | File Transport Protocol |
| FTP | File Transfer Protocol |
| FTTB | Fiber to the building |
| FTTN | Fiber to the neighborhood |
| FUD | Fear, Uncertainty, and Doubt |
| FUSC | Fully Used SubChannel |
| FW | Firewall |
| FWA | Fixed wireless access |
| FX | foreign exchange |
| FXO | Foreign Exchange Office |
| FXP | File eXchange Protocol |
| FXP | Foreign Exchange Protocol |
| FXP | fxp |
| FXS | Foreign Exchange Station |
| G | giga |
| G2C | Government to Citizen |
| GAIA | GUI Application Interoperability Architecture |
| GAMS | General Algebraic Modeling System |
| GAP | Groups, Algorithms and Programming |
| GAPE | Google Apps Premier Edition |
| GARP | Generic Address Resolution Protocol |
| Gas | GNU Assembler |
| GB | gigabyte |
| gb | Giga bit |
| GB | Gigabyte |
| GBIC | Gigabit interface converter |
| GBP | group buffer pool |
| Gbps | Gigabit per second |
| Gbps | gigabits per second |
| GCC | GNU Compiler Collection |
| GCD | Grand Central Dispatch |
| GCG | Grey Component Replacement |
| GCGID | graphic character global identifier |
| GCI | General Communication Inc. |
| GD&T | geometric dimensioning and tolerancing |
| GDB | GNU debugger |
| GDI | graphics device interface |
| GDI | Graphics Device Interface |
| GDM | global delivery model |
| GDP | Gateway Discovery Protocol |
| GDPS | Geographically Dispersed Parallel Sysplex |
| GDS | Global data synchronization |
| GDSN | Global Data Synchronization Network |
| GDTs | Global data types |
| GEAR | Gigabyte Enhanced Agp Riser |
| GEDCOM | GEnealogical Data COMmunication |
| GEMMS | Global Enterprise Manufacturing Management System |
| GEnie | General Electric Network for Information Exchange |
| GEO / GEOS | Geo-Stationary Earth Orbit System |
| GEOS | graphic environment operating system |
| GEPOF | Gigabit Ethernet (over) Plastic Optical Fiber |
| GERAN | GSM(GPRS)/EDGE Radio Access Network |
| gfortran | GNU Fortran compiler |
| GFP | Generic Framing Procedure |
| GFS | Grandfather, Father, Son |
| GGP | Gateway-gateway protocol |
| GGSN | Gateway GPRS Support Node |
| GHC | Glasgow Haskell Compiler |
| Ghost | General Hardware-Oriented Software Transfer |
| GHz | gigahertz |
| GIAC | Global Information Assurance Certification |
| GiB / gib | gibibyte |
| GID | group identification number |
| GIF | Graphic Interchange Format |
| GIFT | GNU Image Finding Tool |
| GIGO | Garbage In, Garbage Out. |
| GIMP | Gnu Image Manipulation Program |
| GINA | Graphical Identification and Authentication |
| GINI | Gateway Interface for Network Initialization |
| GIOP | General Inter-ORB Protocol |
| GIS | Geographical Information System |
| GIX | Global Internet eXchange |
| GKTMP | Gatekeeper Transaction Message Protocol |
| GLA | Generic Log Adapter |
| GLB / GLBA | Gramm-Leach-Bliley (Act) |
| GLONASS | Global Navigational Satellite System |
| GLPK | GNU Linear Programming Kit |
| GLUT | openGL Utility Toolkit |
| GMA | Gmail Drive |
| GMM | GPRS Mobility Management |
| GMR | Giant Magneto Resistance |
| GMRP | Garp Multicast Registration Protocol |
| GMRS | General Mobile Radio Service |
| GMS | General MIDIStandard |
| GMS | generalized main scheduling |
| GMS | Global Messaging Service |
| GMS | Google Message Security |
| GMSK | Gaussian Minimum Shift Keying |
| GMX | Global Mail eXchange, in Germany: Global Message eXchange |
| GNAT | GNU NYU Ada Translator |
| GNN | Global Network Navigator |
| GNOME | GNU Network Object Model Environment |
| GNSO | Generic Names Supporting Organization |
| GNU | GNU’s not Unix |
| GOCA | Graphic Object Content Architecture |
| GOLC | Growth Opportunity License Charge |
| GOMS | Goals, Operators, Methods, and Selection rules |
| GOPS | Giga (billion) Operations Per Second |
| GOS | Grade of Service |
| GOSIP | Government OSI Profile |
| GOW | Gears of War |
| GOW | God of War |
| GPF | General Protection Fault |
| GPIO | general-purpose I/O |
| GPL | General Public License |
| GPO | Group Policy Object |
| GPRS | general packet radio system |
| GPRS | general packet radio service |
| GPS | Global Positioning System |
| GPS | GNAT Programming Studio |
| GPSL | General Purpose Scripting Language |
| GPSS | General Purpose Simulation System |
| GPU | Graphics Processing Unit |
| GPWW | group practice without walls |
| GRC | governance, risk and compliance |
| GRC.SQ | Governance, Risk Management, Compliance, Security, and Data Quality |
| GRCM | GRC management |
| GRE | generic routing encapsulation |
| grep | global-regular-expression-print |
| GROW | GNU Remote Operations Web |
| GRT | Granular Recovery Technology |
| GSAM | generalized sequential access method |
| GSC | Gecko System Connect |
| GSI | Gigascale Integration |
| GSK | Global Security Kit |
| GSM | global system for mobile communications |
| GSM | Global System for Mobile communication |
| GSO | global sign-on |
| GSR | Gigabit Switch Router |
| GTL | Gunning Transceiver Logic |
| GTM | global trade management |
| GTM | Global Traffic Manager |
| GTP | GPRS Tunneling Protocol |
| GTS | Generic Traffic Shaping |
| GTT | Global Title Translation |
| GUA | graphical user authentication |
| GUI | graphical user interface |
| GUI | Graphical User Interface |
| GUID | Globally Unique Identifier |
| GUTBN | Globally Unique Time Based Number |
| GVN | Global value numbering |
| GVPN | Global Virtual Network Service |
| GVRP | Generic VLANResolution Protocol |
| GVU | Graphic, Visualization, and Usability |
| GWEN | Ground Wave Emergency Network |
| GWT | Google Web Toolkit |
| GXA | Global XML Web Services Architecture |
| GXS | Global exchange services |
| gzip | GNU zip |
| H&H | Hoot & Holler |
| H/S LAN | High-Speed Local-Area Network |
| H3C | (previous) Huawei Technologies - 3Com |
| HA | high availability |
| HAAT | Height Above Average Terrain |
| HACMP | High-Availability Cluster Multi-Processing |
| Hactivism | from ‘hack’ and ‘activism’ |
| HAD | Holographic Autostereoscopic Display |
| HADR | high availability disaster recovery |
| HAE | Height Above Ellipsoid |
| HAL | hardware abstraction layer |
| HAL | Hardware Abstraction Layer |
| HAN | home area network |
| HARC | Hitachi Asynchronous Remote Copy |
| HARQ | Hybrid Automatic Repeat reQuest |
| HASP | Houston Automatic Spooling Program |
| HAT | Heap Analysis Tool |
| HAVi | Home Audio Video interoperability |
| HBA | host bus adapter |
| HCI | Host Controller Interface |
| HCI | Human-Computer Interaction |
| HCL | hardware compatibility list |
| HCL | Hardware Compatibility List |
| HCM | human capital management |
| HCO | High-Capacity Optical |
| HCR | Huffman Codeword Reordering |
| HCT | hardware compatibility tests |
| HD / HDD | Hard Disk Drive |
| HD DVD | high-density DVD |
| HDA | Head Disk Assembly |
| HDCP | High-bandwidth Digital Content Protection |
| HDD | hard disk drive |
| HDLC | High Level Data Link Control |
| HDLC | High-level Data Link Control |
| HDMi | high definition media interface |
| HDMI | High-Definition Multimedia Interface |
| HDML | Handheld Device Markup Language |
| HDR | header label |
| HDR | High-dynamic-range imaging or High-dynamic-range rendering |
| HDR | host-discovered resource |
| HDS | Hitachi Data Systems |
| HDSL | High bit-rate Digital Subscriber Line |
| HDTP | Handheld Device Transport Protocol |
| HDTV | High Definition television |
| HDx / HD | Half duplex |
| HE-AAC | High Efficiency Advanced Audio Coding |
| HEC | Header Error Control |
| HEL | Hardware Emulation Layer |
| HEP | horizontal enterprise portal |
| HERF | high energy radio frequency |
| HFC | Hybrid Fiber Coax |
| HFS | Hierarchical File System |
| HFS+ | Hierarchical File System Plus |
| HGFS | Host-Guest File System |
| HGML | Hypertext General Markup Language |
| HHO | Hard Hand Off |
| HHT | Hand-Held Terminal |
| HID | High-Intensity Discharge |
| HID | Human Interface Device |
| HIDAM | hierarchical indexed direct access method |
| HIDS | Host based Intrusion Detection System |
| HiFD | HIgh-capacity Floppy Disk |
| HighMAT | High-performance Media Access Technology |
| HIL | Hardware-in-the-Loop |
| HIMEM | HIgh MEMory |
| HIP | Host Identity Protocol |
| HIPAA | Health Insurance Portability and Accountability Act |
| HiPerLinks | High-Performance Links |
| Hiperspace | High-Performance Space |
| HIPPI | HIgh Performance Parallel Interface |
| HIS | healthcare information system |
| HISAM | hierarchical indexed sequential access method |
| HITECH | Health Information for Economic and Clinical Health |
| HIToolbox | Human Interface Toolbox |
| HKCC | HKey_Current_Config |
| HKLM | HKey_Local_Machine |
| HL7 | Health Level 7 |
| HLA | High Level Architecture |
| HLLAPI | High Level Language Application Programming Interface |
| HLR | Home Location Register |
| HMA | High Memory Area |
| HMD | Head Mounted Display |
| h-menu | Hierarchical menu |
| HMP | Hybrid Multiprocessing |
| Honeynet | A network of honeypots. |
| HOSED | Hardware Or Software Error Detected |
| HP | Hewlett-Packard |
| HP | HoneyPot |
| HPA | High Performance Addressing |
| HPB | High Ping Bastard |
| HPC | High Performance Computing |
| HPF | High Pass Filter |
| HPFS | high performance file system |
| HPFS | High Performance File System |
| HPGL | Hewlett-Packard Graphics Language |
| HPIB | Hewlett Packard Interface Bus |
| HPNA | Home Phoneline Networking Alliance |
| HPR | High-Performance Routing |
| HR | horizontal rule |
| HR/DSSS | High Rate/Direct Sequence Spread Spectrum Physical Layer |
| HRAA | High Resolution Anti Aliasing |
| HRC | Hitachi Remote Copy |
| HRMS | human resource management system |
| HRPD | High Rate Packet Data |
| HSB / HSV | Hue, Saturation, Brightness (or Value) |
| HSCSD | High Speed Circuit Switched Data |
| HSD | High Speed Data |
| HSDPA | High-Speed Downlink Packet Access |
| HSF | Heat Sink Fan |
| HSF | High Sierra Format |
| HSIL | Host Side Igmp Library |
| HSM | Hardware Security Module |
| HSM | Hierarchical storage management |
| HSO | Hot Spot Operator |
| HSR | Horizontal Scan Rate |
| HSRP | Hot Standby Router Protocol |
| HSS | Home Subscriber Service |
| HSSDC | High Speed Serial Direct Connect |
| HSSI | High Speed Serial Interface |
| HSUPA | High-Speed Uplink Packet Access |
| HT | Hyper-Threading |
| HT | HyperTransport |
| HTC | formerly High Tech Computer Corporation |
| HTML | hypertext markup language |
| HTML or HTM | HyperText Markup Language |
| HTML5 | HyperText Markup Language 5 |
| HTT | Hyper-Threading Technology |
| HTTP | hypertext transfer protocol |
| HTTP | HyperText Transfer Protocol |
| HTTP | HyperText Transport Protocol |
| HTTPS | hypertext transfer protocol over secure sockets layer |
| HTTPS | HTTP over SSL |
| HTTPS | HyperText Transfer Protocol Secure |
| HTTPS | Secured HTTP or HTTP Secure |
| HUD | Head Up Display |
| HURSE | Hasp Unit Record SErvice |
| HWS | high watermark setup |
| HXRC | Hitachi Extended Remote Copy |
| Hz | hertz |
| I/O | input/output |
| I/O | Input/Output |
| I2 | Internet2 |
| I2C | Inter-Integrated Circuit |
| I²C | Inter-Integrated Circuit |
| IA-32/64 | Intel Architecture - 32/64 |
| IaaS | integration as a service |
| IAB | Internet Architecture Board |
| IAB | Internet Architecture Board (previous Internet Activities Board) |
| IAD | integrated access device |
| IAM | Identity and Access Management |
| iAMT | Intel Active Management Technology |
| IANA | Internet Assigned Numbers Authority |
| IANA | Internet Assigned Number Authority |
| IANA | Internet Assigned Numbers Authority |
| IAP | Internet Access Provider |
| IAS | Internet Authentication Service |
| IAT | Inside Air Temperature |
| IB | Interface Bus |
| IBG | interblock gap |
| IBM | International Business Machines |
| IBO | industry business unit |
| IBR | intelligent browser referencing |
| IBSG | Internet Banking System Group |
| IBSG | Internet Business Solutions Group |
| IBT | IntelliLight Broadband Transport |
| IBT | Internet Based Training |
| IC | I see |
| IC | Integrated Circuit |
| ICA | Independent Computing Architecture |
| ICA | International Compliance Association |
| ICANN | Internet Corporation For Assigned Names and Numbers |
| ICC | Internet Commerce Corporation |
| ICCs | integration competency centers |
| ICDL | International Computer Driving Licence |
| ICE | in-circuit emulator |
| ICE | information and content exchange |
| ICE | Interactive Connectivity Establishment |
| ICF | Internet Connection Firewall |
| ICI | Information-centric infrastructure |
| ICI | Interexchange Carrier Interface |
| ICM | incentive compensation management |
| ICMP | internet control message protocol |
| ICMP | Internet Control Message Protocol |
| ICMS | incentive compensation management system |
| ICP | Internet Content Provider |
| ICPP | Intel Channel Partner Program |
| ICQ | I Seek You |
| ICR | intelligent character recognition |
| ICRA | Internet Content Rating Association |
| ICS | internet connection sharing |
| ICS | Incremental Change Synchronization |
| ICS | Internet Connection Sharing |
| ICSA | International Computer Security Association |
| ICSI | Institute for Clinical Systems Improvement |
| ICT | information and communication technology |
| ICU | International Components for Unicode |
| ID | identifier |
| IDA | (Verizon) Internet Dedicated Access |
| IDARS | integrated document archive and retrieval system |
| IDC | Internet data center |
| IDD | international direct dial / dialing |
| IDE | integrated drive electronics |
| IDE | Integrated Development Environment |
| IDE | integrated drive electronics |
| IDEA | International Data Encryption Algorithm |
| I-DEAS | Integrated-Design Engineering Analysis Software |
| IDEMA | International Disk drive Equipment and Materials Association |
| iDEN | integrated digital enhanced network |
| IDF | Intermediate distribution frame |
| IDIM | Identity Information Management |
| IDIOT | Intrusion Detection In Our Time |
| IDIQ | indefinite delivery/indefinite quantity; |
| IDL | Interface Definition Language |
| IDM | Internet Download Manager |
| IDOL | Intelligent Data Operating Layer |
| IDOM | integrated document and output management |
| IDQ | Informatica Data Quality |
| IDR | Intelligent Disaster Recovery |
| IDS | Intrusion Detection System |
| IDT | (originally) International Discount Telecommunications |
| iDTV | Interactive digital television |
| IDU | interface data unit |
| IE | Internet Explorer |
| IEC | Commission Electrotechnique Internationale (French) |
| IEC | Inter-exchange Carrier |
| IEC | International Electrotechnical Commission |
| IEE | Institution of Electrical Engineers |
| IEEE | Institute of Electrical and Electronics Engineers |
| IEEE | Institute for Electrical and Electronic Engineers |
| IEEE | Institute of Electrical and Electronics Engineers |
| IES | Integrated Environmental Solutions |
| IETF | Internet Engineering Task Force |
| IETF | Internet Engineering Task Force |
| IFB | Internet Free/Busy |
| iFCP | Internet Fibre Channel Protocol |
| IFL | Integrated Facility for Linux |
| iFrame | inline frame |
| IFRS | International Financial Reporting Standards |
| IGF | Internet Governance Forum |
| IGMP | Internet Group Management Protocol |
| IGMP | Internet Group Management Protocol |
| IGP | interior gateway protocol |
| IGRP | Interior Gateway Routing Protocol |
| IGS | IBM Global Services |
| IHS | Integrated Heat Spreader |
| IHV | Independent hardware vendor |
| IIOP | Internet Inter-ORB Protocol |
| IIS | Internet Information Services |
| IIS | Internet Information Server |
| IKE | Internet Key Exchange |
| ILEC | Independent Local Exchange Carrier |
| ILEs | Immersive learning environments |
| ILM | IBM License Manager |
| ILM | Information Lifecycle Management |
| iLO | Integrated Lights-Out |
| ILP | initial loader program |
| IM | Identity Management |
| IM | Instant Messaging |
| IMAC | installations, moves, adds and changes |
| IMAP | internet mail access protocol |
| IMAP | Internet Message Access Protocol |
| IMAP4 | Internet Mail Access Protocol version 4 |
| IMAPI | Image Mastering Application Programming Interface |
| IMC | Intelligent Management Center |
| IMC | Internet Mail Consortium |
| IME | Input Method Editor |
| IMEI | International Mobile Equipment Identifier |
| IMS | Information Management System |
| IMS | IP multimedia systems |
| IMSI | International Mobile Subscriber Identity |
| IMUX | Inverse Multiplexer |
| INAP | Intelligent Network Application Protocol |
| INC | International Network of Crackers |
| InfoSec | Information Security |
| INI file | initialization file |
| Inmarsat | International Maritime Satellite Organization |
| INTAP | Interoperability Technology Association for Information Processing |
| Intel | INTegrated ELectronics |
| InterNIC | Internet Network Information Center |
| IOA | input/output adapter |
| IOCA | Image Object Content Architecture |
| IOD | in-order delivery |
| iODBC | Independent Open DataBase Connectivity |
| IOM | Integrated Object Model |
| IONL | Internal Organization of the Network Layer |
| IOP | Interoperability |
| IOPS | Input/Output operations per second |
| IOS | international operator services (IOS Telecom) |
| IoS | Internet over Satellite |
| IOS | Internetwork Operating System |
| iOS | iPhone OS |
| IoT | Internet of Things |
| IOTP | Internet Open Trading Protocol |
| IP | internet protocol |
| IP | Intellectual Property |
| IP | Internet Protocol |
| IP address /number | Internet Protocol addresss /number |
| IP PBX | Internet Protocol private branch exchange |
| IP telephony | Internet Protocol telephony |
| IPA | intelligent process automation |
| IPAM | Intellectual property asset management |
| IPAM | IP Address Management |
| IPC | interprocess communication |
| IPCONFIG | internet protocol configuration |
| IPL | initial program load |
| IPL / IPLC | international private line / international private leased circuit |
| IPM | Internetwork Performance Monitor |
| IPMX | IP management exchange |
| I-PNNI | Integrated Private Network-Network Interface |
| IPP | internet printing protocol |
| IPP | Internet Printing Protocol |
| IPPP | Internet presence provider and promoter |
| IPR | Intellectual Property Rights |
| IPRM | intellectual property rights management |
| IPRR | Intellectual property rights and royalties |
| IPS | Intrusion prevention system |
| IPSEC | internet protocol security |
| IPSec | IP Security |
| IPT | Identity Protection Technology |
| IPT | IP telephony |
| IPTV | Internet Protocol Television |
| IPv4 | Internet Protocol, version 4 |
| IPv6 | Internet Protocal version 6 |
| IPv6CP | IPv6 PPP Control Protocol |
| IPX | internetwork packet exchange |
| IPX | Internetwork Packet Exchange |
| IPX/SPX | internetwork packet exchange/sequenced packet exchange |
| IR | infrared |
| IR | InfraRed |
| IR | Internet Registry |
| IRC | Internet Relay Chat |
| IrDA | Infrared Data Association |
| IRF | Intelligent Resilient Framework |
| iRMC | Integrated Remote Management Controller |
| IRP | I/o Request Packet |
| IRQ | interrupt request |
| IRQ | Interrupt Request |
| IRS | Interrupt Source |
| IRTF | Internet Research Task force |
| IRTF | Internet Research Task Force |
| IRU | Indefeasible Right of Use |
| IS | Information Systems |
| ISA | Industry Standard Architecture |
| ISA | Industry Standard Adapter |
| ISA | Internet Security and Acceleration |
| ISACA | Information Systems Audit and Control Association |
| ISAKMP | Internet Security Association and Key Management Protocol Authentication |
| ISAM | Indexed Sequential Access Method |
| ISATAP | Intra-Site Automatic Tunnel Addressing Protocol |
| ISC | Internet Software Consortium |
| iSCSI | Internet SCSI |
| ISDN | Integrated Services Digital Network |
| ISDN | Integrated Services Digital Network |
| ISIS | Image and Scanner Interface Specification |
| IS-IS | Intermediate System to Intermediate System (routing protocol) |
| IS-IS | Intermediate-System-to-Intermediate-System |
| ISL | inter-switch link |
| ISM | industrial, scientific and medical |
| ISN | Initial Sequence Numbers |
| ISO | Industry Standards Organization |
| ISO | International Organization for Standardization |
| ISOC | Internet Society, promotes internet policies |
| ISOC | Internet SOCiety |
| ISP | Internet Service Provider |
| ISP | Internet service provider |
| ISR | interrupt service routine |
| ISS | Internet Security Systems |
| ISSAC | Information System for Advanced Academic Computing |
| ISTG | InterSite Topology Generator |
| ISUP | ISDN User Part |
| ISV | independent software vendor |
| IT | Information Technology |
| ITAD | IT asset disposition |
| ITAM | IT asset management |
| ITC | IT consolidation |
| ITCAM | IBM Tivoli Composite Application Monitoring |
| ITCM | IT Change Management |
| ITCS | Intermodal Transport Control System |
| ITeS | Information Technology Enabled Services |
| ITIL | Information Technology Infrastructure Library |
| ITL | Instructional Technology Lab |
| ITLA | Incremented Three Letter Acronym |
| ITO | IT outsourcing |
| ITOM | IT operations management |
| ITU | International Telecommunication Union |
| ITU | International Telecommunication Union |
| ITU-T | International Telecommunications Union |
| ITWAB | IT Workload Automation Broker Tools |
| ITXC | Internet Telephony Exchange Carrier |
| IVANS | International Value Added Network Services |
| IVDT | Integrated Voice and Data Terminal |
| IVIS | in-vehicle information system |
| IVR | interactive voice response |
| IXC | Interexchange Carrier |
| IXS | Integrated xSeries Server |
| J2EE | Java 2 Platform, Enterprise Edition |
| J2ME | Java 2 platform, Micro Edition |
| J2SE | Java 2 platform, Standard Edition |
| JAAS | Java Authentication and Authorization Service |
| JACK | JACK Audio Connection Kit |
| JAD | joint application development |
| JAMES | Java Apache Mail Enterprise Server |
| JAR | Java Archive |
| JBIG | Joint Bi-level Image experts Group |
| JBL | Jame B. Lansing |
| JBOD | Just a Bunch of Disks |
| JCA | Java Connector Architecture |
| JCAHO | Joint Commission on Accreditation of Healthcare Organizations |
| JCB | job control block |
| JCL | Job Control Language |
| J-code | Japan code |
| JCP | Java Community Process |
| JDBC | Java DataBase Connectivity |
| JDK | Java Development Kit |
| JEDEC | Joint Electronic Devices Engineering Council |
| JES | Job Entry Subsystem |
| JFK | Just Fast Keying |
| JFS | Journaling File System |
| JIA | Joint Innovation Assessment |
| JIT | Just-in-time |
| JITA | Just In Time Activation |
| JITT | just-in-time training |
| JJ | Josephson Junction |
| JMS | Java Messaging Service |
| JNI | Java Native Interface |
| JOA | Joint Opportunity Assessment |
| JOLAP | Java Interface for OLAP |
| JPDL | jBoss process definition language |
| JPEG / JPG | Joint Photographic Experts Group |
| JRE | Java Runtime Environment |
| JS | JavaScript |
| JSON | JavaScript Object Notation |
| JSP | Java Server Page |
| JTAG | Joint Test Action Group |
| JTC | Join Transitive Closure |
| JTC1 | Joint Technical Committee |
| JTRS | Joint Tactical Radio System |
| JVM | Java virtual machine |
| JVT | job volume table |
| k | kilo |
| kaid | Kai console daemon |
| KB | kilobyte |
| Kb | Kilobit |
| kB | Kilobyte |
| KBE | knowledge-based engineering |
| KBMS | KeyBoard/MouSe |
| kbps | Kilobit per second |
| Kbps | Kilobits Per Second |
| KBS | Knowledge-Based System |
| KBW | keyboard wedge |
| KCC | Knowledge Consistency Checker |
| KDC | Key Distribution Center |
| KDD | Knowledge Discovery in Databases |
| KDE | K Desktop Environment |
| KDSI | thousand (K) Delivered Source Instructions |
| keychan | Key changer |
| keygen | Key Generator |
| keylogging | keystroke logging |
| KGD | Known Good Die |
| KiB | kibibyte |
| KIPS | Thousands of instructions per second |
| KIS | Knowbot Information Service |
| KISS | Keep It Simple, Stupid |
| KLOC | thousands of lines of code |
| KM | knowledge management |
| k-map | knowledge map |
| KML | Keyhole Markup Language |
| KMS | Key Management Server |
| KMS | Knowledge Management System |
| KNI | Katmai New Instructions |
| knowbot | Knowledge robots |
| KOLs | Key opinion leaders |
| KPCMS | Kodak Precision Color Management System |
| KPI | key performance indicator |
| KPN | (formerly) Koninklijke PTT Nederland |
| KPO | Knowledge Processing Outsourcing |
| KSAM | Keyed Sequential Access Method |
| ksh | Korn shell |
| KSR | Keyboard Send/Receive |
| KSU | Key Service Unit |
| KTM | kernel transaction manager |
| KTS | Key Telephone System |
| KUIP | Kernel User Interface Package |
| KVA | Kilo Volt Amp |
| KVM | K Virtual Machine |
| KVM | Keyboard, Video, and Mouse |
| kW | kilowatt |
| KWH | KiloWatt Hour |
| KYC | Know Your Customer |
| L1 / L2 cache | level-1/2 cache |
| l10n | localization |
| L2CAP | Logical Link and Control Adaptation Protocol |
| L2F | Layer2 Forwarding |
| L2F | Layer 2 Forwarding |
| L2S | Layer 2 Switch |
| L2TP | Layer 2 tunneling protocol |
| L2TP | Layer 2 Tunneling Protocol |
| L3F | Layer 3 Forwarding |
| L3S | Layer 3 Switch |
| L3TP | Layer Three Tunneling Protocol |
| LA | Load Address |
| LAC | L2tp Access Concentrator |
| LACNIC | Latin American and Caribbean Internet Addresses Registry |
| LACP | Link Aggregation Control Protocol |
| LADDR | Layered Device Driver |
| LAI | Location Area Identity |
| LAIPE | Link And In Parallel Execute |
| LAMP | Linux, Apache, MySQL and PHP |
| LAN | local area network |
| LAN | Local area network |
| LANE | Local Area Network Emulation |
| LAPB | Link Access Procedure, Balanced (x.25) |
| LAPD | Link Access Procedures on the D channel |
| LAPF | Link-access procedure for frame relay |
| LAS | logical application structure |
| laser | light amplification by stimulated emission of radiation |
| LASINT | laser intelligence |
| LAT | Local Address Table |
| LATA | Local Access and Transport Area |
| LBA | logical block addressing |
| LBA | Logical Block Addressing |
| LBAC | label-based access control |
| LBG | load balancing group |
| LBO | line buildout |
| LBS | Location-based service |
| LC | Lucent connector |
| LCC | Limited combustible cable |
| LCC / LLCC | Leaded Chip Carrier / Leadless Chip Carrier |
| LCD | liquid crystal display |
| LCD | liquid crystal display |
| LCI | local component installer |
| LCM | Life Cycle Management |
| LCN | local communication network |
| LCO | language context object |
| LCOS | Liquid Crystal On Silicon |
| LCP | Link Control Protocol |
| LCR | least cost routing |
| LCR | Lifetime Clinical Record |
| LCR | Line Concentration Ratio |
| LCR | Local Continuous Replication |
| LCS | Communications Server |
| LCS | Liquid Cooling System |
| LCS | Live |
| LD | Laser Disc |
| LDA | Local delivery agent |
| LDA | Local delivery agent |
| LDAP | lightweight directory access protocol |
| LDAP | Lightweight Directory Access Protocol |
| LDCM | LANDesk Client Manager |
| LDIF | LDAP Data Interchange Format |
| LDM | limited distance modem |
| LDP | Label Distribution Protocol |
| LDPC | low-density parity-check code |
| LDR | Light Dependent Resistor |
| LDS | logical data stream |
| LDT | Lightning Data Transfer (Bus) |
| LEAP | Lightweight Extensible Authentication Protocol |
| LED | light emitting diode |
| LED | light-emitting diode |
| LEED | Leadership in Energy and Environmental Design |
| LEL | Link, Embed and Launch-to-edit |
| LEO | Low Earth Orbit |
| LER | Label Edge Router |
| LF | Line Feed |
| LFB | look-ahead-for-busy |
| LFS | Linux From Scratch |
| LGA | Land Grid Aray |
| LGPL | Lesser General Public License (GNU) |
| LID | local identifier |
| LIDE | Light emitting diode In-Direct Exposure |
| LIFO | last in, first out |
| LINAC | Linear Accelerator |
| Li-on | lithium-ion |
| LION | Lower Indian Ocean Network |
| Lion / Li-ion | Lithium-ion |
| LIP | or LiPoly lithium-ion polymer |
| LIP | Loop Initialization Process |
| LIPS | Logical Inferences Per Second |
| LIS | Laboratory information system |
| Lisp | List Processor or List Processing |
| LKM | Loadable Kernel Modules |
| LL | local loop |
| LLC | Logical link control |
| LLDP | Link Layer Discovery Protocol |
| LLDP-MED | Link Layer Discovery Protocol-Media Endpoint Discovery |
| LLI | Low Latency Interrupts |
| LLI | Lower Layer Interface |
| LLTD | Link Layer Topology Discovery |
| LLU | local loop unbundling |
| LMA | Lightspeed Memory Architecture |
| LMDS | Local Multipoint Distribution Services |
| LMP | Link Manager Protocol |
| LMPP | Lighttpd/MySQL/PHP/Python |
| LMS | Learning Management System |
| LNA | launch numerical aperture |
| LNA | Low Noise Amplifier |
| LNIB | like new, in box |
| LNO | Loop Nest Optimization |
| LNP | Local Number Portability |
| LNS | L2tp Network Server |
| LOB | large object |
| LOB | Line-of-Business |
| LOC | Lines of Code |
| LOCK | local object creator and killer |
| LODA | Lombardi On-Demand Assistance |
| LOFS | LOopback File System |
| LOM | LAN On Motherboard |
| Loran | long-range radio navigation |
| LOS | Line of Sight |
| LOS | Loss of signal |
| LPA | Linear Power Amplifier |
| LPA | link pack area |
| LPAR / LP | logical partition |
| LPB | Low Ping Bastard |
| LPC | Linear Predictive Coding |
| LPC | Local Procedure Call |
| LPD | line printer daemon |
| LPD/LPR | line printer daemon / line printer remote |
| LPDA | Link Problem Determination Aid |
| LPF | League for Programming Freedom |
| LPF | Low-Pass Filter |
| LPFM | low-power FM radio |
| LPI | lines per inch |
| LPI | Linux Professional Insitute |
| LPP | Land Pre-Pits |
| LPPL | Latex Project Public License |
| LPR | line printer requester |
| LPT | line printer terminal |
| LPT | line print terminal |
| LPT1 | line printer terminal 1 |
| LPTV | low-power television |
| LPWA | Lucent Personalized Web Assistant |
| LPX | low profile extended |
| LPX | Low Profile eXtension / Extended |
| LQA | link quality analysis |
| LQSR | Link Quality Source Routing |
| LR | Lightroom |
| LRC | longitudinal redundancy check |
| LRC | Loop Resiliency Circuit |
| LRF | Little Rubber Feet |
| LRN | Location Routing Number |
| LRU | least recently used |
| LS | Loop-Start Signaling |
| LSA | Local Security Authority |
| LSAP | Link Service Access Point |
| LSAS | Local Security Authentication Server |
| LSASS | Local Security Authority Subsystem Service |
| LSB | Least Significant Bit |
| LSH | Locality-Sensitive Hashing |
| LSI | Large Scale of Integration |
| LSM | Linux Software Map |
| LSM | Local Service Manager |
| LSP | License Service Provider |
| LSR | label switch router |
| LSR | Leaf Setup Request |
| LSR | Line Service Request |
| LSR | Local Service Request |
| LSR | local shared resource |
| LSSGR | LATA Switching System Generic Requirements |
| LTC | line traffic coordinator |
| LTE | Lite Terminating Equipment |
| LTE | Long-Term Evolution |
| LTF | Leap To Frogans |
| LTM | Local Traffic Managers |
| LTPA | Lightweight Third Party Authentication |
| LTRAN | local transaction |
| LTRS | Letters Shift |
| LTS | Leaning Toothpick Syndrome |
| LU | Logical Units |
| LU | Logical Unit |
| LUF | lowest usable high frequency |
| LU-LU | between two logical units |
| LUN | logical unit number |
| LUNT | line unit network termination |
| LUS | LookUp Service |
| LUW | logical unit of work |
| LVD | low voltage differential |
| LVD | Low Voltage Differential |
| LVDS | Low Voltage Differential Signaling |
| LVM | Logical Volume Manager |
| LVM | Low Voltage Differential Signaling |
| LVOL / LV | logical volume |
| LWL | long wavelength |
| LWP | light-weight process |
| LZH | Lempel-Ziv-Haruyasu |
| LZW | Lempel Ziv Welch |
| M/L | Mobile-to-Land Traffic |
| M2M | Manufacturer-to-Manufacturer |
| M2M | model-to-model |
| MAA | Mail access agent |
| MAC | media access control |
| Mac | Macintosh |
| MAC | Media access control |
| MAC | message authentication code |
| MAC | Mid-Atlantic Crossing |
| MADM | Multiple Appearance Directory Number |
| MAE | Metropolitan Area Exchange and/or Ethernet |
| MAGs | Multichannel access gateways |
| mAH | milliampere-hour or milliamp-hour |
| MAID | massive array of idle disks |
| Malware | Malicious Software |
| MAN | metropolitan area network |
| MAN | Metropolitan area network |
| MANET | Mobile Ad Hoc Network |
| MAP | Major Sync Point |
| MAP | Manufacturing Automation Protocol |
| MAP | Mobile Application Part |
| MAPI | messaging application programming interface |
| MAPI | Messaging Application Programming Interface |
| MAPP | Microsoft Active Protections Program |
| MAPS | Mail Abuse Protection System |
| MARS | Monitoring, Analysis and Response System |
| MARS | Multicast Address Resolution Server |
| MARS | Multivariate Adaptive Regression Splines |
| MAS | Modula-2 Algebra System |
| MASER | Microwave Amplification by Simulated Emission of Radiation |
| MathML | Mathematics Markup Language |
| MAU | Medium Attachment Unit |
| MAU | Multistation Access Unit |
| MAX | Master Auxiliary Correction |
| Mb | megabit |
| MB | megabyte |
| Mb | megabyte |
| Mbps | Megabits per second |
| MBR | master boot record |
| MBR | Master Boot Record |
| MBS | Maximum Burst Size |
| MBSA | Microsoft Baseline Security Analyzer |
| MBSA | Microsoft Baseline Security Analyzer |
| MBT | MB Technology |
| m-business | mobile business |
| MC | Multiple choice |
| MCA | message channel agent |
| MCA | Micro Channel Architecture |
| MCCM | multichannel campaign management |
| MCI | Micro-channel architecture |
| MCI | Microwave Communications, Inc. |
| MCIF | (IBM) Measured Capability Improvement Framework |
| MCL | Mesh Connectivity Layer |
| MCM | Multi-Chip Module |
| MCMP | Multi-channel Multi-point |
| m-commerce | mobile commerce; |
| MCP | Microsoft Certified Professional |
| MCP | Multi-chip package |
| MCR | multivariant curve resolution |
| MCR | Maximum Cell Rate |
| MCSE | Microsoft Certified Systems Engineer |
| MCU | multipoint control unit |
| MD2/4/5 | Message Digest algorithm 2/4/5 |
| MDA | approaches |
| MDA | Model-driven architecture |
| MDA | model-driven |
| MDB | Message-Driven Beans |
| MDF | Main distribution frame |
| MDF | Medium Density Fiberboard |
| MDI | Medium Dependent Interface |
| mdisk | managed disk |
| MDIX | medium dependent interface crossover |
| MDM | master data management |
| MDM | Meter Data Management |
| MDP | Mobile Data Protection |
| MDS | Master Data Service |
| MDX | Multidimensional Expressions |
| ME | Millenium Edition |
| MEMS | micro-electromechanical systems |
| MEO | Medium/Middle Earth Orbit |
| MERVA | Message Entry and Routing with Interfaces to Various Applications |
| MES | Manufacturing Execution Systems |
| MES | Mobile Entertainment Service |
| MESA | Manufacturing Enterprise Solutions Association |
| MFA | Multifactor authentication |
| MFC | Microsoft Foundation Class |
| MFD | multi-function device |
| MFD | Multi Function Device |
| MFM | modified frequency modulation |
| MFP | multi-function product |
| MFP | multifunction product |
| MFS | Multi-Function Security |
| MFT | Managed file transfer |
| MFT | Master File Table |
| MGAS | mostly global address space |
| MGC | Media Gateway Controller |
| MHz | megahertz |
| MIA | Media Interface Adapter |
| MIB | Management Information BASE |
| MIB | Management Information Base |
| MIB | Management information base (SNMP) |
| MiB | mebibyte |
| MIC | Message Integrity Check |
| MICR | Magnetic Ink Character Recognition |
| MicroDIMM | micro dual inline memory module |
| MIDI | musical instrument digital interface |
| MIDI | Musical Instrument Digital Interface |
| MID-II | Management Information DataBase II |
| MIH | Master Information Hub |
| MII | Medium Independent Interface |
| MII | Microsoft/Intel/IBM |
| MILNET | Military Network |
| MIME | multipurpose internet mail extension |
| MIME | Multipurpose Internet Mail Extensions |
| MIMO | Multiple Input, Multiple Output |
| MIP | Multum in Parvum (Latin) means ‘many in one’ |
| MIPS | Millions of Instructions Per Second |
| MIS | management information systems |
| MISRA | Motor Industry Software Reliability Association |
| MIT | Massachusetts Institute of Technology |
| MITM | Man In The Middle |
| ML | Modular Line |
| MLHG | Multi-Line Hunting |
| MLI | multiple link interface |
| MLT | Mechanized Loop Test |
| MMC | Microsoft management console |
| MMC | Microsoft Management Console |
| MMC | MutiMedia Card |
| MMDS | multi-megabit data service |
| MMDS | Multipoint Microwave Distribution System |
| MMF | Multimode Fiberoptic Cable |
| MMO / MMOG | massively multiplayer online game |
| MMORPG | Massive Multiplayer Online Role Playing Game |
| MMR | Modified Modified Read |
| MMS | Microsoft Media Server |
| MMS | Multimedia Messaging Service |
| MMU | Memory Management Unit |
| MMX | multimedia extensions |
| MMX | multimedia extensions |
| MNP | Microcom Networking Protocol |
| MNS | managed network services |
| MNS | Master of Network Science |
| MO | Magneto-Optical |
| MOB | movable object |
| MoBo | motherboard |
| MoCA | Multimedia over Coax Alliance |
| MODEM | modulator-demodulator |
| MOE | Measures of Effectiveness |
| MOF | Microsoft Operations Framework |
| MOH | Music On Hold |
| MOM | Microsoft Operations Manager |
| MOO | Mud, Object Oriented |
| Moodle | Modular Object-Oriented Dynamic Learning Environment |
| MoReq | Model Requirements for the Management of Electronic Records |
| MORPH | (from) metamorphosis |
| MOS | Mean Opinion Score |
| MOSFET | Metal-Oxide-Semiconductor Field-Effect Transistor |
| MOSS | Microsoft Office SharePoint Server |
| MoST | mobile solutions terminal |
| MOTD | message of theday |
| MOTIS | Message oriented text interchange system |
| MOV | Merchant of Venice |
| MP3 | Moving Picture Experts Group Layer 3 Audio |
| MP3 | MPEG Layer 3 |
| MPAS | mostly private address space |
| MPEG | Moving Picture Experts Group |
| MPEG | Moving Picture Experts Group |
| MPI | Master Patient Index |
| MPIF | Multi-Processor Interconnect Facility |
| MPL | Mozilla Public License |
| MPL | Multi-schedule Private Line |
| MPLS | Multiprotocol Label Switching |
| MPN | Microsoft Partner Network |
| MPOE | minimum point of entry |
| MPP | massively parallel processing |
| MPPE | Microsoft Point to Point Encryption |
| Mpps | millions of packets per second |
| MPS | managed print services |
| MQ | message queue (formerly) |
| MQT | materialized query table |
| MRAM | magnetoresistive random access memory |
| MRI | Magnetic Resonance Imaging |
| MRO | maintenance, repair and operations |
| mrouter | multicast / router |
| MRTG | Multi Router Traffic Grapher |
| MRU | most recently used |
| MS | Message Store |
| MS | Memory Stick |
| MS | Microsoft |
| ms | millisecond |
| MSA | metropolitan statistical area |
| MSA | Mobile Sales Assistant |
| MSA | Modular Smart Array |
| MSAP | Microsoft Application Platform |
| MSB | Most Significant Bit |
| MSBD | Media Stream Broadcast Distribution |
| MSC | Mobile Switching Center |
| MSCONFIG | Microsoft configuration |
| MSCS | Microsoft Cluster Server |
| MSDB | main storage database |
| MSDE | Microsoft Data Engine |
| MSDN | Microsoft Developer Network |
| MSDP | Multicast Source Directory Protocol |
| MSDS | material safety data sheet |
| MSE | Microsoft Security Essentials |
| MSEE | Microsoft Equation Editor |
| MSI | Medium Scale Integration |
| MSI | Message Signal Interrupts |
| MSI | Micro Star International |
| MSI | MicroSoft Installer |
| MSIL | Microsoft Intermediate Language |
| MSL | Mean Sea Level |
| MSM | Mainframe Service Management |
| MSMQ | Microsoft Message Queuing |
| MSN | Microsoft Network |
| MSNP | Microsoft Notification Protocol |
| MSO | multiple-system operator |
| MSPP | MultiService Provisioning Platform |
| MSS | Maximum Segment Size |
| MSS | mobile satellite service |
| MSS / MSSP | managed security service (provider) |
| MSSP | managed security service provider |
| MSTP | Multiple Spanning Tree Protocol |
| MTA | Message transfer agent |
| MTA | Mail Transfer Agent |
| MTA | message transfer agent |
| MTA | Multi-Threaded Apartment |
| MTBF / MTTF | mean time between failures / mean time to failure |
| MTP | message transfer part |
| MT-RJ | Mechanical Transfer Registered Jack |
| MTS | Microsoft Transaction Server |
| MTSO | Mobile Telephone Switching Office |
| MTTR | mean time to repair |
| MTU | Maximum Transmission Unit |
| MTU | maximum transfer unit |
| MTU | Maximum Transmission Unit |
| MUA | Mail User Agent |
| MUD | Multi-User Dungeon or Dimension |
| MUI | multilingual user interface |
| multimedia | multiple forms of media |
| MULTOS | Multi-Application Operating System |
| MUSE | Multi-User Simulated Environment |
| mutex | mutual exclusion |
| MUX | Multiplexor |
| MVNO | mobile virtual network operator |
| MVS | Multiple Virtual Storage |
| MW | middleware |
| MWE | multiword expression |
| MWI | Mobile Web Initiative |
| MX record | mail exchange record |
| MXF | Material Exchange Format |
| NAB | Not A Bug |
| NAC | Network access control |
| NAC | network attached connection |
| NACHA | National Automated Clearing House Association |
| NADN | Nearest Active Downstream Neighbor |
| NAI | Network Associates Inc. |
| NAK | Negative acknowledgement or not acknowledged |
| NAM | Number Assignment Module |
| NAMPS | Narrowband Advanced Mobile Phone Service |
| NaN | Not a Number |
| NANAE | News.Admin.Net-Abuse.Email |
| NANOG | North American Network Operators Grou |
| NANP | Identifies the electrical conditions on the circuit. |
| NAP | Network Access Protection |
| NAP / NAPs | network access points |
| NAS | network-attached storage, network access server |
| NAS | network access server |
| NAS | Network Application Support |
| NAS | network-attached storage |
| NASDAQ | National Association of Securities Dealers Automated Quotations |
| NASS | Network Attachment Subsystem |
| NASTRAN | NASA Stress Analysis |
| NAT | network address translation |
| NAT | Network Address Translation |
| NAU | Network Addressable Units |
| NAUN | Nearest Active Upstream Neighbor |
| NAV | Norton Anti Virus |
| NAVSTAR | NAVigation Satellite Timing and Ranging |
| NBC | National Broadcasting Company |
| NBF | NetBIOS Frame Protocol |
| NBMA | Non-Broadcast Multiple Access (e.g. Frame Relay ATM) |
| NBNS | NetBIOS Name Server |
| NBP | Name binding protocol |
| NBSP | Non-Breaking Space |
| NBT | NetBIOS over TCP/IP |
| NC | Network Computer |
| NCC | Norton Control Center |
| NCCM | Network Configuration and Change Management |
| NCI | Network Channel Interface |
| NCP | NetWare Core Protocol |
| NCP | Network Control Program |
| NCp | Netware Core Protocol |
| NCP | Network Control Program |
| NCQ | Native Command Queuing |
| NDC | networked data center |
| NDIS | Network Driver Interface Specification |
| NDIS | Network Driver Interface Specification |
| NDM | Network Data Mover |
| NDMP | Network Data Management Protocol |
| NDP | Neighbor Discovery Protocol |
| NDr | Non-Delivery Receipt |
| NDS | Netware Directory Services |
| NEC | National Electric Code |
| NEC | NEC |
| NEl | Network Element Layer |
| NEMs | network equipment manufacturers |
| NES | Nintendo Entertainment System |
| NetApp | Network Appliance |
| NetBEUI | networked basic input/output system extended user interface |
| netbeui | NetBios Enhanced User Interface |
| NetBIOS | networked basic input/output system |
| NETBIOS | network basic input/output system |
| Netizen | citizen of theInternet |
| net-J | Internet disc jockey |
| newbie | New beginner |
| NEWS | Network Extensible Window System |
| NEXT | Near-End Crosstalk |
| NF / NFs | Normal Forms |
| NFC | Near-field communication |
| NFF | No Fault Found. |
| NFF | Notes Flat File |
| NFI | Near Field Imaging |
| NFS | Network File System |
| NFS | Network File System |
| NGC | Next Generation Communications |
| NGN | Next-Generation Network |
| NGOSS | next-generation operational support system solutions |
| NHM | Next Human Network |
| NHRP | Next Hop Resolution Protocol |
| NIC | network interface card |
| NIC | Network Information Center |
| NIC | Network Interface Card |
| nicad | nickel-cadmium |
| NICAM | Near Instantaneous Companded Audio Multiplex |
| NiCd | nickel cadmium |
| NICE | Narrative, Immersive, Collaborative Environment |
| NID | Network Interface Device |
| NIH | not invented here (syndrome) |
| NILO | Network Interface LOader |
| NIM | Network Interface Module |
| NiMH | nickel metal hydride |
| NiMH | Nickel Metal Hydride |
| NIP | Non-Impact Printer |
| NIR | Near-Infrared |
| NIS | Network Information Service |
| NIS | Norton Internet Security |
| NIST | National Institute of Standards and Technology |
| NJE | network job entry |
| NLA | Network Location Awareness |
| NLB | Network Load Balancing |
| NLDF | national language dependent function |
| NLI | not logged in or natural language interface |
| NLM | NetWare Loadable Module |
| NLM | Network Lifecycle Management |
| NLO | net-liberated organization |
| NLOS | Near Line OF Sight |
| NLP | Natural language processing |
| NLQ | Near Letter Quality |
| NLS | National Language Support |
| NLSP | Novell Link State Protocol |
| NLSR | Natural languagespeech recognition |
| NLX | new low-profile extended |
| NMC | Network Management Center |
| NMI | nonmaskable interrupt |
| NMOS | Negative-channel Metal Oxide Semiconductor |
| NMS | Network Management Station |
| NMS | Network Monitoring System |
| NNI | network-to-network interface |
| NNTP | network news transfer protocol |
| NNTP | Network News Transfer Protocol |
| NO/NC | Normally Open/Normally Closed |
| NOC | Network Operations Center |
| no-op | no operation |
| NOS | Network Operating System |
| NOS | Network Operating System |
| NPA | numbering plan area |
| NPC | North Pacific Cable |
| NPDA | Network Problem Determination Application |
| NPI | National Provider Identifier |
| NPL | Netscape Public License |
| NPP | Network Payment Protocol |
| NPSI | nonpartitioned secondary index |
| NPU | Network Processor |
| NRM | normal response mode |
| NRO | Number Resource Organization |
| NRZ | Non Return to Zero |
| NRZ | Non-return-to-zero |
| NRZI | Non-return to zero inverted |
| ns | Nanosecond |
| NSA | Network Security Appliance |
| NSFNET | National Science Foundation Network |
| NSI | Network Solutions, Inc |
| NSLookup | Name Server Lookup |
| NSLU2 | Network Storage Link for USB 2.0 |
| NSM | Network and Security Manager |
| NSP | Network Service Provider |
| NSR | nonshared resources |
| NSR | Non-Source Routed |
| NSS | Network Switching Subsystem |
| NT | New Technology |
| NTCIP | National Transportation Communications for Intelligent Transportation System |
| NTE | Network Termination Equipment |
| NTF | No Trouble Found |
| NTFS | new technology file system |
| NTFS | New Technology File System |
| NTLDR | new technology loader |
| NTO | Network Terminal Option |
| NTP | network time protocol |
| NTRU | Number Theory is Really Useful |
| NTSC | National Television System Committee |
| NTT | network topology template |
| NTT | Nippon Telegraph and Telephone |
| NUI | Natural User Interfaces |
| NUMA | Non-Uniform Memory Access |
| NVE | Network Visible Entity |
| NVRAM | Non-volatile RAM |
| NWLINK | Netware Link |
| NZ-DSF | Non Zero-Dispersion-Shifted Fiber |
| O.K.I. | Open Knowledge Initiative |
| O2 | Object-Oriented |
| O2O | Online To Offline |
| OAAM | Oracle Adaptive Access Manager |
| OADM | Optical Add/Drop Multiplexer |
| OAM | object access method |
| OAM / OA&M / OAM&P | Operations, Administation, and Management (and |
| OASIS | Organization for the Advancement of Structured Information Standards |
| OAT | Outside Air Temperature |
| OATH | Object-oriented Abstract Type Hierarchy |
| OBDR | One Button Disaster Recovery |
| OBEX | OBject EXchange |
| OBI | Open Buying on the Internet |
| OBIEE | Oracle BI Enterprise Edition |
| OBM | On-board modem |
| OBOE | Off-By-One Error |
| OBU | On Board Unit |
| OC | Optical Carrier |
| OC | overclock |
| OC-12 | Optical Carrier Level N |
| OC-192 | Optical Carrier Level N |
| OC-3 | Optical Carrier Level N |
| OC-48 | Optical Carrier Level N |
| OC-768 | Optical Carrier Level N |
| OCIA | Optically Coupled Interface Adapter |
| OCL | Object Constraint Language |
| OC-N | Optical Carrier Level N |
| OCP | Open-Closed Principle |
| OCP | Oracle Certified Professional |
| OCR | optical character recognition |
| OCR | Optical Character Recognition |
| OCSP | Online Certificate Status Protoco |
| OCTAVE | Operationally Critical Threat, Asset, and Vulnerability Evaluation |
| OCX | OLEÂ Custom Controls |
| ODA | Open Document Architecture |
| ODBC | Open Database Connectivity |
| ODBC | Open Database Connectivity |
| ODBO | OLE DB for OLAP |
| ODC | Offshore development center |
| ODD | optical disk drive |
| ODF | OpenDocument |
| ODI | Open Data link Interface |
| ODI | Open Data-link Interface |
| ODM | Original Design Manufacturer |
| ODMR | On-Demand Mail Relay |
| ODOE | on demand operating environment |
| ODP | Open Data Path |
| ODPS | On Demand Packaging Service |
| OEM | original equipment manufacturer |
| OEM | Oracle Enterprise Manager |
| OEM | Original Equipment Manufacturer |
| OEP | Outlook Exchange Protocol |
| OFB | output feedback |
| OFCom | Office of Communications |
| OFDM / OFDMA | Orthogonal Frequency-Division multiplexing (/Multiple Access) |
| OFM | Oracle Fusion Middleware |
| OFX | Open Financial Exchange |
| OGL | Open Graphics Language |
| OGSA | Open Grid Services Architecture |
| OHG | Operators Harmonization Group |
| OIC | Oracle Incentive Compensation |
| OID | Object Identifier |
| OLAP | online analytical processing |
| OLE | Object Linking and Embedding |
| OLED | organic light-emitting diode |
| OLIC | online image copy |
| OLIVE | On-Line Interactive Virtual Environment |
| OLPC | One Laptop Per Child |
| OLTP | On-Line Transaction Processing |
| OMA | Open Mashup Alliance |
| OMG | Object Management Group |
| OMH | order management hub |
| OML | Ontology Markup Language |
| OMR | optical mark recognition |
| OMR | Optical Mark Reader |
| OMSA | OpenManage Server Administrator |
| OMT | Object Modeling Technique |
| ONA | Organizational network analysis |
| ONE | Open Net Environment |
| OO | object-oriented or object orientation |
| OOA&D | Object-oriented analysis and design |
| OOB | Out Of Band |
| OODB | Object-Oriented Data Base |
| OOF | Out Of Frame |
| OOo | OpenOffice.org |
| OOP | object-oriented programming |
| OOSE | Object Oriented Software Engineering |
| OPA | Open Patent Alliance |
| OPA | Oracle Policy Automation |
| Opamp | Operational Amplifier |
| op-code | Operation Code |
| OpenCL | Open Computing Language |
| OpenGL | Open Graphics Library |
| OPML | Outline Processor Markup Language |
| OPN | Oracle Partner Network |
| OPOD | Oracle Procurement On Demand |
| OPS | Off Premise Station |
| OPX | Off Premise Extension |
| ORB | Object Request Broker |
| ORBS | Open Relay Behaviour-modification System |
| ORDB | Open Relay DataBase |
| ORF | Open reading frame |
| ORFS | Output Radio Frequency Spectrum |
| ORM | Object/Relational Mapping |
| ORM | operational risk management |
| OS | operating system |
| OS | Operating System |
| OSA | Open System Architecture |
| OSAF | Open Source Applications Foundation |
| OSD | On Screen Display |
| OSD | Open Software Description |
| OSDL | Open Source Development Lab |
| OSF | Open Software Foundation |
| OSGi | Open Services Gateway Initiative |
| OSI | Open Systems Interconnect |
| OSI | Open System Interconnect (joint ISO and ITU standard) |
| OSI | Open Systems Interconnection |
| OSLC | Open Services for Lifecycle Collaboration |
| OSMINE | Operations Systems Modification of Intelligent Network Elements |
| OSN | output sequence number |
| OSPF | Open Shortest Path First |
| OSPF | Open Shortest Path First |
| OSPF | Open Shortest Path First (routing protocol) |
| OSPM | Operating System Power Management |
| OSR | original equipment manufacturer service release |
| OSS | Online Service System |
| OSS | Open source software |
| OSSIM | Open Source Security Information Management |
| OST | Outside Surface Temperature |
| OTA | Over The Air |
| OTDR | Optical Time Domain Reflectometer |
| OTFE | On-the-fly encryption |
| OTM | Oracle Transportation Management |
| OTN | Optical Transport Network |
| OTP | One Time Password |
| OTP | one-time programmable |
| OTP | Open Trading Protocol |
| OTS | Over-the-Shoulder |
| OU | organizational unit |
| OUI | Organization Unique Identifier |
| OUI | Organizationally Unique Identifier |
| OVF | Open Virtualization Format |
| OVP | online video platform |
| OWA | Outlook Web Access |
| OWASP | Open Web Application Security Project |
| OWI | Optimized Warehouse Initiative |
| OWL | Web Ontology Language |
| OXE | OmniPCX Enterprise |
| p2mp | point-to-multipoint |
| P2P | Peer to Peer |
| P2SC | Power 2 Super Chip |
| P3P | Platform for Privacy Preferences |
| P4M | Pentium 4 Processor-M |
| PaaS | platform-as-a-service |
| PABX / PBX | private automatic branch exchange |
| PAC | Proxy Auto-Configuration |
| PACE | pressures, action, capabilities and enablers |
| PAD | Packet Assembler and Disassembler |
| PAE | Physical Addressing Extension |
| PAL | Phase Alternate Line |
| PAL | Processor Abstraction Layer |
| PAL | Publication Access List |
| PAM | Performance Acceleration Module |
| PAM | pluggable authentication module |
| PAM | Port to Application Mapping |
| PAM | pulse amplitude modulation |
| PAN | personal area network |
| PAN | Personal Area Network |
| PAP | Password Authentication Protocol |
| PAP | Printer access protocol |
| PAP | Password authentication protocol |
| PAP | Printer Access Protocol |
| PA-QSA | Payment Application Qualified Security Assessor |
| PARC | Palo Alto Research Center |
| PaRM | Patient relationship management |
| PASC | Portable Applications Standards Committee |
| PASV | Passive (command) |
| PAT | Performance Acceleration Technology |
| PAT | Port address translation |
| PATA | parallel advanced technology attachment |
| PAVCL | Panda Antivirus Command-Line Scanner |
| PB | PetaByte |
| PBM | pharmacy benefits management |
| PBN | policy-based networking |
| PBX | private branch exchange |
| PC | personal computer |
| PC | Personal Computer |
| PC | Personal computer (host) |
| PCB | Printed Circuit Board |
| PCCW | (formerly) Pacific Century CyberWorks |
| PCD | Photo Compact Disc |
| PCI | peripheral component interconnect |
| PCI | Peripheral Component Interconnect |
| PCI DSS | Payment Card Industry Data Security Standard |
| PCIe | peripheral component interconnect express |
| PCI-E | Peripheral Component Interconnect - Express |
| PCIX | peripheral component interconnect extended |
| PCL | printer control language |
| PCL | Printer Command Language |
| PCM | Pulse Code Modulation |
| PCM | Pulse-code modulation |
| PCMCIA | Personal Computer Memory Card International Association |
| PCMCIA | Personal Computer Memory Card International Association |
| PCR | Peak Cell Rate |
| PCRE | Perl-compatible regular expressions |
| PCS | Personal Communications Service |
| PCT | Private Communication Technology |
| PDA | personal digital assistant |
| PDA | Personal Digital Assistant |
| PDB | Program DataBase |
| PDC | Primary Domain Controller |
| PDC | Personal digital cellular |
| PDC | Primary Domain Controller |
| PDE | possible duplicate emission |
| Portable Document Format | |
| PDH | Plesiochronous Digital Hierarchy |
| PDL | Page description language |
| PDL | Pure Dumb Luck |
| PDM | Pure Digital Monitor |
| PDN | Public data network |
| PDN | Primary Directory Number |
| PDN | public data network |
| PDP | Policy Decision Point |
| PDQ | Product Data Quality |
| PDS | partitioned data set |
| PDU | Protocol Data Unit |
| PDU | Protocol data unit (such as segment, packet, frame, etc.) |
| PEAP | Protected Extensible Authentication Protocol |
| PEARL | Process and Experiment Automation Realtime Language |
| PEF | Preferred Executable Format |
| PEM | Privacy Enhanced Mail |
| PEP | Policy Enforcement Point |
| PEP | program entry procedure |
| Perl | Practical Extraction and Report Language |
| PERT | Program Evaluation and Review Technique |
| PET | Personal Electronic Transactor |
| PF Key | Program Function Key |
| PFM | personal financial management |
| PFS | Public-Key Forward Secrecy |
| PGA | pin grid array |
| PGA2 | pin grid array 2 |
| PGI | Premiere Global Services, Inc. |
| PGP | Pretty Good Privacy |
| PGR | presentation graphics routines |
| pgSQL | PostgreSQL |
| PHB | Per-Hop-Behavior |
| PHI | Protected Health Information |
| PHP | PHP Hypertext Preprocessor(originally Personal Home Page) |
| PHS | Personal Handy Phone System |
| PHY | Physical Layer |
| PHZIP | Phil Katz’s ZIP |
| PiB | pebibyte |
| PIC | Position-Independent Code |
| Picnic | Problem In Chair, Not In Computer |
| PID | Process ID |
| PID | Proportional Integral Derivative |
| PIE | Presence, Identity and Edge |
| PII | personally identifiable information |
| PIM | Personal information manager |
| PIM | Privileged Identity Management |
| PIM | Protocol Independent Multicast |
| PIN | personal identification number |
| PIN | personal identification number |
| PINE | Program for Internet News and E-Mail |
| ping | Packet Internet or Inter-Network Groper |
| PIO | Programmed Input/Output |
| PIPE | Private Internet Protocol Encapsulation |
| PIPs | process integration packs |
| PIX | Private Internet eXchange |
| pixel / pel | Picture Element |
| PKCS | Public-Key Cryptography Standards |
| PKI | public key infrastructure |
| PKI | public-key infrastructure |
| PL/1 | Programming Language 1 |
| PL/SQL | Procedural Language/Structured Query Language |
| PLA | Programmable Logic Array |
| PLC | PowerLine Communication |
| PLC | product life cycle |
| PLCP | Physical Layer Convergence Protocol |
| PLD | Programmable Logic Device |
| PLL | Phase Lock Loop |
| PLM | product life cycle management |
| PLMN | public land mobile network |
| PLOGI | port login |
| PLPA | pageable link pack area |
| PMD | Physical Media Dependent |
| PMDB | performance management database |
| PME | Power Management Event |
| PMI | Portable Management Interface |
| PMI | Privilege Management Infrastructure |
| PMI | Product and manufacturing information |
| PMI | Project Management Institute |
| PMM | Post Memory Manager |
| PMML | Predictive Model Markup Language |
| PMO | Project management office |
| PMR | Perpendicular Magnetic Recording |
| PMR | Private Mobile Radio |
| PMSM | permanent magnet synchronous motors |
| pNFS | parallel Network File System |
| PNG | Portable Network Graphics |
| PnP | plug and play |
| PNP | Personal Network Platform |
| PnP | Plug and Play |
| PNRP | Peer Name Resolution Protocol |
| POC | Proof of Concept |
| POC | Push-to-talk Over Cellular |
| POD | Proof of Deposit |
| POD | Publishing on demand |
| PoE | Power Over Ethernet |
| pog.com | Play Online Games |
| POLP | principle of least privilege |
| PON | passive optical networking |
| POP | post office protocol |
| POP | Point of presence |
| POP | Post Office Protocol |
| POP | protected object policy |
| POP3 | post office protocol 3 |
| POP3 | Post Office Protocol v3 |
| POP3 | Post Office Protocol, version 3 |
| POS | point of sale |
| POSIX | Portable Operating System Interface for UNIX |
| POST | power-on self test |
| POST | Power-on self test |
| POTS | plain old telephone service |
| POTS | Plain old telephone service |
| POWER | Performance Optimization With Enhanced Risc |
| POX | plain old XML |
| PPC | Pay-Per-Click |
| PPD | Postscript Printer Description |
| PPE | PowerPC Processor Element |
| PPM | Parts Per Million |
| PPM | project portfolio management |
| PPN | Primary Port Network |
| PPP | point-to-point protocol |
| PPP | Point to Point Protocol |
| PPP | Point-to-point Protocol |
| PPP | Public–private partnership |
| PPPoE | Point-to-Point Protocol over Ethernet |
| PPRC | Peer to Peer Remote Copy |
| PPTP | point-to-point tunneling protocol |
| PPTP | Point-to-Point Tunneling Protocol |
| PPU | PowerPC Processor Unit |
| PQA | Palm Query Application |
| PRADO | PHP Rapid Application Development Object-oriented |
| PRC | Primary Reference Clock |
| PRI | primary rate interface |
| PRI | Primary Rate Interface |
| PRINCE | Projects in Controlled Environments |
| PROM | programmable read-only memory |
| PROM | Programmable ROM |
| PRPQ | programming request for price quotation |
| PS | Photoshop |
| ps | Picosecond |
| PS | PlayStation |
| PS | PostScript |
| PS/2 | Personal System/2 connector |
| PS/2 | personal system/2 |
| PSA | professional service automation |
| PSD | PhotoShop Drawing |
| PSIP | Program and Systems Information Protocol |
| PSK | phase shift keying |
| PSLC | Parallel Sysplex License Charge |
| PSN | Packet Switch Node |
| PSN | Playstation Network |
| PSN | Processor Serial Number |
| PSP | Personal Software Process |
| PSP | PlayStation Portable |
| PSPs | print service providers |
| PSS | Print SubSystem |
| PSTN | public switched telephone network |
| PSTN | public switched telephone network |
| PTF | Print To Fax |
| PTR record | Pointer record |
| PTT | Postal, Telephone, and Telegraph |
| PTT | Public Telephone and Telegraph |
| PTT | Push To Talk |
| PTTs | Post, telegraph, and telephone authorities |
| PTZ | pan-tilt-zoom |
| PU | Physical Units |
| PUMA | Privileged user monitoring and auditing |
| PUMA | Protected User Mode Audio |
| PUP | Potentially unwanted program |
| PUT | program update tape |
| PVC | permanent virtual circuit |
| PVC | permanent virtual circuit |
| PVC | Polyvinyl Chloride |
| PVR | personal video recorder |
| PVST | Per-VLAN Spanning Tree |
| PVV | PIN verification value |
| PWM | Pulse width modulation |
| PWR | PoWeR |
| PWS | Personal Web Server (or Peer Web Services ) |
| P-x | Pentium - (numbers) |
| PXE | preboot execution environment |
| PXE | Preboot eXecution Environment |
| QA | Quality Assurance |
| QAM | quadrature amplitude modulation |
| QAT | Quantity Above Threshold Indicator |
| QB | QuickBASIC |
| QB | Quickbooks |
| QBDG | Query Based Distribution Group |
| QBDL | Query Based Distribution List |
| QBL | Query By Example |
| QCIF | Quarter Common Intermediate Format |
| QD | Queuing Delay |
| QDF | Quicken Data File |
| QDOS | Quick And Dirty Operating System |
| QDR | Quad Data Rate |
| QEMM | Quarterdeck Expanded Memory Manager |
| QFE | Quick Fix Engineering |
| QFP | Quoted For Permanence |
| QI | Query Interface |
| qic | Quarter-Inch Cartridge |
| QIF | Quicken Interchange Format |
| QIP | quality improvement process |
| QIX | NASDAQ Information Exchange protocol |
| QLLC | Qualified Logical Link Control protocol |
| QMF | Query Management Facility |
| QMS | Quality Micro Systems |
| QName | qualified name |
| QoE | quality of experience |
| QoS | quality of service |
| QoS | quality of service |
| QP | Quantum Programming |
| QPM | QoS Policy Manager |
| QPS | Queries-per-second |
| QPSK | Quadrature Phase-Shift Keying |
| QR code | Quick Response code |
| QSA | Qualified Security Assessor |
| QSIG | Q signaling |
| QT | QuickTime |
| QTM | Quadratic Texture Mapping |
| QTSS | QuickTime Streaming Server |
| QTVR | QuickTime Virtual Reality |
| QTW | QuickTime for Windows |
| Quagi | quad and Yagi |
| QVGA | Quarter Video Graphics Array |
| QXGA | Quad ((or Quantum) eXtended Graphics Array |
| R&D | research and development |
| R_A_TOV | resource allocation timeout value |
| RAB | Raid Advisory Board |
| RAB | Reverse-Link Activity Bit |
| RAC | Real Application Cluster |
| RACF | Resource Access Control Facility |
| RACH | Random Access Channel |
| racon | radar beacon |
| RAD | radiation absorbed dose |
| RAD | Rapid Application Development |
| RADA | random access discrete address |
| RADCAB | Relevancy Appropriateness Detail Currency Authority Bias |
| RADIUS | Remote Authentication Dial In User Service |
| RADIUS | Remote Authentication Dial-In User Service |
| RADSL | Reverse ADSL |
| RADVD | router advertisement daemon |
| RAI | remote alarm indication |
| RAID | redundant array of independent (or inexpensive) discs |
| RAID | Redundant Array of Independent Disks |
| RAM | random access memory |
| RAM | Random Access Memory |
| RAMDAC | Random Access Memory Digital to Analog Converter |
| RAN | Radio Access Network |
| RAPI | Rsvp Application Programming Interface |
| RARE | Européenne |
| RARE | Reseaux Associés pour la Recherche |
| RARP | Reverse Address Resolution Protocol |
| RARP | Reverse Address Resolution Protocol |
| RARP | Reverse ARP |
| RAS | remote access service |
| RAS | Registration, Admission, Status |
| RAS | Remote Announcing System |
| RAS | remote-access server (services) |
| RAS | Row Address Select |
| RAS | Row Address Strobe |
| RAT | Remote Administration Tool |
| RBA | Run Book Automation |
| RBAC | role-based access control or rule-based access control |
| RBAC | role-based access control |
| RBL | Real-time Black-hole List or Real-time Block List |
| RBOC | Regional Bell Operating Company |
| RC | Release Candidate |
| RC2/4/5 | Rivest Cipher 2/4/5 |
| RCA | Radio Corporation of America (cables) |
| RCC | radio common carrier |
| RCM | Revision and Configuration Management |
| rcp | Remote copy |
| RCP | Rich Client Platform |
| RCS | Revision Control System |
| RCU | Rapid Cloning Utility |
| RDAC | Redundant Disk Array Controller |
| RDBA | Remote Database Access |
| RDBMS | relational database management system |
| RDDL | Resource Directory Description Language |
| RDF | radio direction-finding |
| RDF | Resource Description Framework |
| RDI | remote defect indication |
| RDL | Report Definition Language |
| RDM | Remote Deployment Manager |
| rDNS | Reverse DNS |
| RDP | Remote Desktop Protocol |
| RDP | Router Discovery Protocol |
| RDR | Rate of Defect Recurrence |
| RDRAM | RAMBUS dynamic random access memory |
| RDT | remote digital terminal |
| RED | Random Early Detection |
| RED | Reputation Enabled Defense |
| REG | Range Extender with Gain |
| ReGS | Reporting Grid Services |
| REJ | Reject. In communications |
| Rel | Recorder element |
| REL | Rights Expression Language |
| RELAX | REgular LAnguage description for Xml |
| REN | Ringer Equivalency Number |
| RePDV | Reputation Digital Vaccine |
| Res | resolution |
| RES | Robots Exclusion Standard |
| REST | REpresentational State Transfer |
| RETAIN | Remote Technical Assistance and Information Network |
| REVS | Rapid Exchange of Virus Samples list. |
| REXX | Restructured EXtended eXecutor |
| RF | radio frequency |
| RF | Radio frequency |
| RFB | Remote Framebuffer |
| RFC | radio-frequency choke |
| RFC | Request for Comments |
| RFCOMM | Radio Frequency Communication |
| RFI | radio frequency interference |
| RFI | remote failure indication |
| RFID | radio frequency identification |
| RFMD | RF Micro Devices |
| RFP | Request For Proposal |
| RFS / RFU | Ready For Service / Use |
| RFT | Request For Technology |
| RFT | revisable-form text |
| RGB | red green blue |
| RGB | Red/Green/Blue |
| RGMP | Router-port Group Management Protocol |
| RHCE | Red Hat Certified Engineer |
| RHCS | Red Hat Cluster Suite |
| RHEL | Red Hat Enterprise Linux |
| RHR | radio horizon range |
| RHSBL | Right-Hand Side Blacklist |
| RIA | Rich Internet Application |
| RIM | Reference Information Model |
| RIM | Research In Motion |
| RIMM | RAMBUS inline memory module |
| RIMM | Rambus In-Line Memory Module |
| RIP | routing information protocol |
| RIP | raster image processor |
| RIP | Routing Information Protocol |
| RIPE | Réseaux IP Européens |
| RIR | regional Internet registry |
| RIS | remote installation service |
| RISC | reduced instruction set computer |
| RISC | Reduced Instruction Set Computer |
| RJ | registered jack |
| RJ-11 | registered jack function 11 |
| RJ11 | Registered Jack 11 |
| RJ-45 | registered jack function 45 |
| RJ45 | Registered Jack 45 |
| RJE | Remote Job Entry |
| RLC | Radio Link Control |
| RLE | run-length encoding |
| RLL | Run Length Limited |
| RLL | Run-Length Limited |
| rlogin | remote login |
| RLP | Radio Link Protocol |
| RMA | returned materials authorization |
| RMA | rate monotonic analysis |
| RMA | Return Materials Authorization |
| RMC | Raptor Management Console |
| RMC | Resource Monitoring and Control |
| RME | Rack Mount Equipment |
| RME | resource model engine |
| RMI | Remote Method Invocation |
| RMON | Remote Monitoring |
| RMS | Record Management System |
| RMS | Right Management Service |
| RMS | Root Mean Square |
| RMU | Rack Mount Unit |
| RNA | Ribonucleic acids |
| RNA | Ring No Answer |
| RNC | Radio Network Controller |
| R-NE | remote-network element |
| RNI | Raw Native Interface |
| RNR | receive not ready |
| ROA | recognized operating agency |
| ROADM | reconfigurable optical add-drop multiplexer |
| ROD | record oriented data |
| RODM | Resource Object Data Manager |
| RoHS | Restriction of Hazardous Substances |
| ROI | Return on Investment |
| ROKSO | Register of Known Spam Operations |
| ROLR | receive objective loudness rating |
| ROM | read only memory |
| ROM | Read-Only Memory |
| ROM | Report Object Model |
| ROOM | Real-Time Object-Oriented Modeling |
| ROP | Raster Operation |
| ROR | remote outdoor router |
| RoR | Ruby on Rails |
| ROS | run of site |
| ROSE | Remote Operations Service Element |
| rot13 | rotate 13 |
| RPA | Recursive Pyramid Algorithm |
| RPC | Remote Procedure Call |
| RPC | Remote Procedure Call |
| RPF | Reverse Path Forwarding |
| RPG | Report Program Generator |
| RPG | role-playing game |
| RPI | Rockwell Protocol Interface |
| RPL | Recognized Prior Learning |
| RPL | Remote Program Load |
| RPL | Requested Privilege Level |
| RPM | Rapid Predictive Modeler |
| RPM | Red Hat Package Manager |
| RPM | Revolutions Per Minute |
| RPM | Route Processor Module |
| RPN | Reverse Polish Notation |
| RPO | recovery point objective |
| RPP | receiving party pays |
| RPR | Resilient packet ring |
| RP-SMA | Reverse Polarity SubMiniature version A |
| RPT | radio personal terminal |
| RP-TNC | Reverse Polarity Threaded Neill-Concelman |
| RQN | Real-Quick Newsletter |
| RR | Resource Records |
| RR | Register to Register |
| RR | repeatable read |
| RR / RRS | round-robin scheduling |
| RR_TOV | resource recovery timeout value |
| RRI | Reverse Rate Indicator |
| RRPP | Rapid Ring Protection Protocol |
| RS | Recommended Standard |
| RS | Reed-Solomon |
| RS | Remote Scripting |
| RS | RuneScape |
| RS-232 or RS-232C | recommended standard 232 |
| RSA | register save area |
| RSA | Remote Supervisor Adapter |
| RSA | Rivest, Shamir and Adleman |
| RSA | rural service area |
| RSBAC | Rule Set Based Access Control |
| RSCT | Reliable Scalable Cluster Technology |
| rsh | Remote Shell Protocol |
| RSIP | Realm Specific Internet Protocol |
| RSL | received signal level |
| RSM | Relational Storage Manager |
| RSM | Remote Storage Management |
| RSM | Route Switch Module |
| RS-MMC | Reduced Size Multi-Media Card |
| RSN | Real Soon Now |
| RSPAN | Remote Switched Port Analyzer |
| RSS | RDF Site Summary / Really Simple Syndication |
| RSS | Receive Side Scaling |
| RSS | Relay Spam Stopper |
| RSSI | Relative Signal Strength Indicator |
| RSTP | Rapid Spanning Tree Protocol |
| RSU | Recommended Service Upgrade |
| RSU | remote switching unit |
| RSVP | Resource Reservation Protocol |
| RTC | real-time clock |
| RTC | Rich Thin Client |
| RTD | Real-Time Decisions |
| RTE | real-time enterprise |
| RTE | round-trip engineering |
| RTF | Rich Text Format |
| RTG | Radioisotope Thermoelectric Generators |
| RTG | Receive/transmit Transition Gap |
| RTGS | Radioisotope Thermoelectric Generators |
| RTK | Real Time Kinematic |
| RTM | Read The Manual |
| RTMP | Routing table maintenance protocol |
| RTMP | routing table maintenance protocol |
| RTO | recovery time objective |
| RTP | Real-time Transport Protocol |
| rtPS | Real-Time Polling Service |
| RTS | request to send |
| RTSC | Read the Source Code |
| RTSE | Reliable Transfer Service Element |
| RTSP | Real Time Streaming Protocol |
| RTT | Radio Transmission Technology |
| RTT | Real-Time Technology |
| RTT | round-trip time |
| RTTY | radio teletypewriter |
| RTU | Remote Terminal Unit |
| RTU | Right To Use |
| R-UIM | removable user identity module |
| RUOW | remote unit of work |
| RUP | Rational Unified Process |
| RUS | Recipient Update Service |
| RVI | Reverse Interrupt |
| RVLC | Reversible Variable Length Code |
| RW | Read Write |
| RWI | radio and wire integration |
| RWM | Read-Write Memory |
| RWP | Remote Write Protocol |
| RWU | remote wake-up |
| RX / RXD | Receive / Receiving Data |
| S/N | Signal-to-Noise |
| S/PDIF | Sony/Philips Digital Interface |
| S+ | Security+ |
| S3 | Simple Storage System |
| SA | Source-Active |
| SA | System Administrator |
| SAA | Systems Application Architecture |
| SaaS | software as a service |
| SAD | Security Association Database |
| SAIC | Science Applications International Corporation |
| SALT | Speech Application Language Tags |
| SAM | security account manager |
| SAM | Serial Access Memory |
| SAM | software asset management |
| SAML | Security Assertion Markup Language |
| SAN | storage area network |
| SAN / SANs | Storage Area Network(s) |
| SANS | SysAdmin, Audit, Network, Security |
| SANS | System Administration, Networking and Security institute |
| SAP | Service Advertising Protocol |
| SAP | Secondary Audio Program |
| SAP | Service Access Point |
| SAP | Service Advertising Protocol |
| SAP | Systeme, Anwendungen, Produkte |
| SAR | segmentation and reassembly |
| SAS | Single Attachment stations |
| SAS | Secure Attention Sequence |
| SAS | Serial Attached SCSI |
| SAS | single attachment station |
| SAS | Statistical Analysis System |
| SAS 70 | Statement on Auditing Standards No. 70 |
| SASL | Simple Authentication and Security Layer |
| SAST | Static application security testing |
| Sat Nav | Satellite navigation |
| SATA | serial advanced technology attachment |
| SATA | Serial ATA |
| SAV | Symantec AntiVirus |
| SAX | Simple API for XML |
| SB | Sound Blaster |
| SBAS | Satellite-Based Augmentation System |
| SBB | Storage Bridge Bay |
| SBC | Session Border Controller |
| SBC | single-board computer |
| SBCS | single-byte character set |
| SBCS | Smart Business Communications System |
| SBL | Spamhaus Block List |
| SBLOG | spam blog |
| SBM | Subnet Bandwidth Manager |
| SBS | Small Business Server |
| SBSD | Slow But Sure Death |
| SC | subscription channel |
| SCA | Service component architecture |
| SCADA | Supervisory Control And Data Acquisition |
| SCAI | Switch-to-Computer Applications Interface |
| SCAM | SCSI Configured Auto-Magically |
| SCCM | Software change and configuration management |
| SCCP | Signaling Connection and Control Part |
| SCCS | Source Code Control System |
| SCM | Service Control Manager |
| SCM | Source Code Management |
| SCM | Source configuration management |
| SCM | Specifc Coverage Metric |
| SCM | supply chain management |
| SCO | Santa Cruz Operation |
| SCOM | System Center Operation Manager |
| SCORM | Sharable Courseware Object Reference Model |
| SCP | Secure Copy |
| SCP | Service/Signal Control Point |
| SCPC | single channel per carrier |
| SCR | Sustainable Cell Rate |
| SCSI | small computer system interface |
| SCSI | Small Computer System Interface |
| SCSI ID | small computer system interface identifier |
| SCSL | Sun Community Source Licensing |
| ScTP | screened twisted pair |
| SCTP | Stream Control Transmission Protocol |
| SCWCD | Sun Certified Web Component Developer |
| SD | card secure digital card |
| SD | Sales and Distribution |
| SD | Secure Digital |
| SD | Span Destination |
| SDDL | Security Descriptor Definition Language |
| SDDM | source distributed data manager |
| SDDS | Sony Dynamic Digital Sound |
| SDEP | sequential dependent segment |
| SDFI | Secure Digital Forensic Imaging |
| SDH | Synchronous Digital Hierarchy |
| SDH | Synchronous Data Hierarchy |
| SDH | Synchronous Digital Hierarchy |
| SDK | software development kit |
| SDLC | Software development life cycle |
| SDLC | Synchronous Data Link Control |
| SDLS | Synchronous Data Link Control |
| SDLT | Super Digital Linear Tape |
| SDMA | spatial division multiple access |
| SDN | Secondary Directory Number |
| SDN | Software Defined Network |
| SDO | Service Data Objects |
| SDP | Service Delivery Platform |
| SDP | Session Description Protocol |
| SDR | software-defined radio |
| SDRAM | synchronous dynamic random access memory |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SDS | Sudden Death Syndrome |
| SDSL | Symmetric Digital Subscriber Line |
| SDTV | Standard Definition television |
| SDVO | Serial Digital Video Output |
| SDX | Storage Data Acceleration |
| SE | secure element |
| SEAL | simple and efficient AAL |
| SEA-ME-WE | Southeast Asia-Middle East-Western Europe 2 |
| SEA-ME-WE 3 | Southeast Asia-Middle East-Western Europe 3 |
| SEAS | SaaS-enabled application server |
| SEC | single edge connector |
| SEC | Siemens Enterprise Communications |
| SECAM | Sequential Couleur a Memoire |
| SEG | secure e-mail gateway |
| SEM | Strategic Enterprise Management |
| SEN | Siemens Enterprise Communications |
| SEO | Search Engine Optimization |
| SERK | Server Extensions Resource Kit |
| SERP | Search Engine Results Page |
| SES | SecureEasySetup |
| SES | Severely Errored Seconds |
| SET | Secure Electronic Transaction |
| SETI | Search of Extraterrestrial Intelligence |
| SEX | Sun Users’ Group & elsewhere |
| SFA | Sales Force Automation |
| SFC | system file checker |
| SFD | Start-of-Frame Delimiter |
| SFD | Start-of-frame delimiter (Ethernet, HDLC, etc.) |
| SFF | Small Form Factor |
| SFP | Small form-factor pluggable |
| SFTP | SSH File Transfer Protocol (or program) |
| SFU | Services For Unix |
| SGC | Server Gated Cryptology |
| SGF | Structured Graphics Format |
| SGI | Silicon Graphics Incorporated |
| SGML | Standardized General Markup Language |
| SGML | Standard Generalized Markup Language |
| SGRAM | synchronous graphics random access memory |
| SGRAM | Synchronous Graphics Random Access memory |
| SGSN | Service GPRS Support Node |
| SHA | Secure Hash Algorithm |
| S-HTTP | Secure HTTP (rarely used) |
| S-HTTP | Secure Hypertext Transport Protocol |
| SI | system integration |
| SI | system integrator |
| SID | Security Identifier |
| SIEM (SEM & SIM) | Security Information and Event Management |
| Sig Block | signature block |
| SIIA | Software & Information Industry Association |
| SIIT | Stateless Ip/Icmp Translation algorithm |
| SIL | Safety Integrity Level |
| SIM | Security Information Management |
| SIM | subscriber identity module |
| SIMD | Single Instruction Multiple Data |
| SIMM | single inline memory module |
| SIMM | single in-line memory module |
| Simulcast | simultaneous broadcast |
| SIP | Session Initiation Protocol |
| SIPP | Stable Image Platform Program |
| SiS | Silicon Integrated Systems |
| SIS | Single Instance Store |
| SIS | student information system |
| SISMAPI | Siebel Internet Session Network API |
| SITA | Societe Internationale de Telecommunications Aeronautiques |
| SIU | smallest installable unit |
| SIX | Shared with Intent eXclusive |
| SKMS | Service Knowledge Management System |
| SKU | Stock Keeping Unit |
| SL | Scientific Linux |
| SLA | Service Level Agreement |
| SLARP | Serial Line ARP (Address Resolution Protocol) |
| SLED | Single Large Inexpensive disk |
| SLI | scalable link interface or system level integration or scanline interleave mode |
| SLI | Scalable Link Interface |
| SLIC | Subscriber Line Interface Card |
| SLIP | Serial Line interface Protocol |
| SLIP | Serial Line Internet Protocol |
| SLIP | Serial Line Internet Protocol (obs.) |
| SLM | service level management |
| SLP DA | Service Location Protocol Directory Agent |
| SLR | Scalable Linear Recording |
| SLS | Softlanding Linux System |
| SLSI | Super Large Scale of Integration |
| SM/SI | Social Mining and Social Intelligence |
| SMART | Self-Monitoring Analysis And Reporting Technology |
| SMASH | Simple, Many And Self-Healing |
| SMATV | satellite master antenna television |
| SMAU | Smart Multi station Access Unit |
| SMB | server message block or small to midsize business |
| SMB | Server Message Block |
| SMBP | Server Message Block Protocol |
| SMD | Storage Module Device |
| SMDR | station message detail recording |
| SMDS | Switched Multimegabit Data Service |
| SMDS | Switched Multimegabit Data Service |
| SMF | Semantic Modelling Format |
| SMI | Structure of Management Information |
| SMiShing | SMS phishing |
| SMLT | Split Multi-Link Trunking |
| SMP | Simple Management Protocol |
| SMP | Symetric MultiProcessing |
| SMS | Systems Management Server |
| SMS | Security Management System |
| SMS | Short Message Service |
| SMS | Systems Management Server |
| SMSC | Short Messaging Service Center |
| SMSC | Smart Mixed-Signal Connectivity |
| SMSI | Simplified Message Service Interface |
| SMTP | simple mail transport protocol |
| SMTP | Simple Mail Transfer Protocol |
| SN | Sequence Number |
| SNA | System Network Architecture |
| SNA | Social Network Analysis |
| SNA | Systems Network Architecture |
| SNA | Systems Network Architecture (IBM) |
| SNAP | SubNet Access Protocol |
| SNAP | Sub-Network Access Protocol |
| SNC | Supply Network Collaboration |
| SNI | Switch Node Interface |
| SNIPS | System & Network Integrated Polling Software |
| SNMP | simple network management protocol |
| SNMP | Simple Network Management Protocol |
| SNS | social networkingsite |
| SOA | Service Oriented Architecture |
| SOA | Start of Authority |
| SOAP | Simple Object Access Protocol |
| SOC | Security Operation Centre |
| SOC | Separation Of Concerns |
| SOCKS | SOCKetS |
| SoDIMM | small outline dual inline memory module |
| SODIMM | Small Outline Dual Inline Memory Module |
| SOF | Start of frame |
| SOH | Start Of Header |
| SOHO | small office/home office |
| SoIP | Storage over IP |
| SOM | Self-Organizing Map |
| SONET | Synchronous Optical Network |
| SONET | Synchronous Optical Network |
| SONIC | SAC On-Line Interactive Controller |
| SONIC | Science Of Networks In Communities |
| SORBS | Spam and Open Relay Blocking System |
| SOS | Secure Object Store |
| SOS | Sophisticated Operating System |
| SOS | Symbian Operating System |
| SOW | statement of work |
| SOX | Sarbanes-Oxley Act |
| SP | service pack |
| SP | Service-Packs |
| SP | storage processor |
| SP1 | service pack 1 |
| SP2 | service pack 2 |
| SPAN | Switched Port Analyzer |
| SPARC | Scalable Processor ARChitecture |
| SPB | Stored Procedure Builder |
| SPC | stored program control |
| SPD | Serial Presence Detect |
| SPD | System Products Division |
| SPDIF | Sony-Philips digital interface format |
| SPE | Synergistic Processor Element |
| SPE | System Policy Editor |
| SPF | Sender Policy Framework |
| SPF | Shortest Path First |
| SPGA | staggered pin grid array |
| Sphairon | Sphere, luminary, global and Elektron, Technology (vision) |
| SPI | Serial Peripheral Interface |
| SPI | Stateful Packet Inspection |
| SPICE | Simple Protocol for Independent Computing Environment |
| SPIM | Spam over Instant Messaging |
| SPIT | Spam over Internet Telephony |
| SPL | Sender Policy Framework |
| SPL | Sound Pressure Level |
| SPM | Statistical Packet Multiplexing |
| SPM | supplier performance management |
| SPML | Service Provisioning Markup Language |
| SPOF | Single point of failure |
| SPOI | Signaling Point Of Interface |
| SPOT | Smart Personal Objects Technology |
| SPREAD | Systems Programming, Research, Engineering And Development |
| SPSS | Statistical Package for the Social Sciences |
| SPU | Synergistic Processor Unit |
| SPX | sequenced package exchange |
| SPX | Sequenced Packet Exchange |
| SQL | Structured Query Language |
| SQL | Structured Query Language |
| SQL PL | SQL procedural language |
| SQR | Security to Quality Defect Ratio |
| SR | Speech Recognition |
| SRAM | static random access memory |
| SRAM | Static random access memory |
| SRAT | Static Resource Affinity Table |
| SRGS | Speech Recognition Grammar Specification |
| SR-IOV | Single-root I/O virtualization standards |
| SRL | Singing Return Loss |
| SRM | storage resource management |
| SRS | Shared Registry Server |
| SRT | (formerly) Souris River Telecommunications |
| SRT | Source Routing Transparent |
| SRV | Service records |
| SS7 | Signaling System 7 |
| SSA | Social Security Administration |
| SSA | Survivable Systems Analysis |
| SSAP | Source Service Access Point |
| SSB | sequential store buffer |
| SSCP | Systems Services Control |
| SSD | Solid-State Drive |
| SSE | Simple Sharing Extension |
| SSE | Streaming Simd Extensions |
| SSH | secure shell |
| SSH | Secure shell |
| SSI | Server-Side Includes |
| SSI | Small Scale Integration |
| SSID | service set identifier |
| SSID | Service Set identifier |
| SSID | Service set identifier (Wi-Fi) |
| SSIM | Symantec Security Information Manager |
| SSL | secure sockets layer |
| SSL | Secure Sockets Layer |
| SSLE | sequential systems of linear equations |
| SSMP | Simple Screen Management Protocol |
| SSO | single sign-on |
| SSO | System Security Officer |
| SSSCE | Short Self-Contained Correct (or Compilable) Example |
| ST | straight tip |
| STA | Single Threaded Apartment |
| STEP | Standard for the exchange of product |
| STK | Satellite ToolKit |
| STM | scanning tunneling microscopes |
| STM | Synchronous Transport Module |
| STP | shielded twisted pair |
| STP | shielded twisted pair |
| STP | Soa Tools Platform |
| STP | Spanning Tree Protocol |
| STP | Straight Through Processing |
| STP | Switching Transfer Points or Single Transfer Points |
| STS | Security Token Service |
| STT | Secure Transaction Technology |
| STUN | Session Traversal Utilities for NAT |
| STX | Start Of Text |
| SUA | Single User Account |
| SUS | Software Update Services |
| SUT | System Under Test |
| SVBR | Semantics of Business Vocabulary and Business Rules |
| SVC | Switched virtual circuit |
| SVC | Scalable Video Coding |
| SVC | supervisor call |
| SVC | Switched Virtual Circuit |
| SVD | Secondary Virtual Disk |
| SVG | Scalable VectorGraphics |
| SVGA | super video graphics array |
| SVGA | Super Video Graphics Array |
| S-Video | Super-Video /Â Sony Video |
| SVPCo | Small Value Payments Co. |
| SW or S/W | Software |
| SWAP | Shared Wireless Access Protocol |
| SWAT | Samba Web Administration Tool |
| SWAT | Solutions with Advanced Technologies |
| SWIFT | Society for Worldwide Interbank Financial Telecommunication |
| SWIM | System Wide Information Management |
| SWL | short wavelength |
| SWOP | Specifications for Web Offset Publications |
| SWT | Standard Widget Toolkit |
| SXGA | super extended graphics array |
| SYN (TCP) | Synchronization |
| Sync | Synchronisation |
| syslog | system logging |
| Sysop | System Operator |
| SYSVOL | System Volume |
| T2L | TRANSISTOR-TRANSISTOR LOGIC |
| TACACS | Terminal Access Controller Access Control System |
| TAE | text analysis engine |
| TAO | Track at Once |
| TAPI | Telephony Application Programming Interface |
| tar | Tape ARchive |
| TAXI | Transparent Asynchronous Transmitter/Receiver Interface |
| TB | terabyte |
| Tb | terabit |
| TB | TeraByte |
| Tbps | terabits per second |
| TBR | Technology Business Research |
| TCA | Transaction Cost Analysis |
| TCAP | Transaction Capabilities Application Part |
| TCB | trusted computing base |
| TCG | Trusted Computing Group |
| tcl | Tool Command Language |
| TCO | total cost of ownership |
| t-commerce | television commerce |
| TCP | transmission control protocol |
| TCP | Test Coordination Procedure |
| TCP | Transmission Control Protocol |
| TCP/IP | transmission control protocol/internet protocol |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TCP/IP | Transmission Control/Internet Protocol |
| TCQ | Tagged Command Queuing |
| TCS | Tata Consultancy Services |
| TCS | Telecommunications Systems |
| TCU | transmission control unit |
| TDC A/S | Tele-Denmark Communications |
| TDD/TTY | Tone Dialing for the Deaf/Teletype |
| TDDM | target distributed data manager |
| TDI | Transport Driver Interface |
| TDK | Tokyo Denki Kagaku |
| TDL | time differential linking |
| TDM | time division multiplexing |
| TDM | Time-division multiplexing |
| TDR | time domain reflectometer |
| TDR | Time Domain Reflectometry |
| TD-SCDMA | Time division-synchronous code division multiple access |
| TE | Traffic Engineering |
| TEC | Thermoelectric Cooler |
| TEC | Tivoli Enterprise Console |
| TED | Technology Entertainment and Design |
| TED | Tiered Electronic Distribution |
| TED | Torrent Episode Downloader |
| TED | Tunnel Endpoint Discovery |
| TEHO | tail end hop off |
| TEI | Total Economic Impact |
| Telco | telephone company |
| telematics | telecommunications and informatics |
| telephony | Telephone technology |
| Telnet | telephone network protocol |
| TEM | telephone expense management |
| TERM | technology-enabled relationship management |
| TESS | and Statistics Server |
| TESS | Transaction Events |
| TETRA | Terrestrial Trunked Radio |
| texel | Texture Element |
| TFRC | TCP-Friendly Rate Control |
| TFS | Team Foundation Server |
| TFS | Three Finger Salute |
| TFT | Thin Film Transistor |
| TFTP | trivial file transfer protocol |
| TFTP | Trivial File Transfer Protocol |
| TGT | ticket-granting ticket |
| TI | Texas Instruments |
| TIA | Telecommunications Industries Association |
| TIA | Telecommunications Industry Alliance |
| TiB | tebibyte |
| TIES | time independent escape sequence |
| TIFF | Tag Image File Format |
| TIP | Telepresence Interoperability Protocol |
| TISPAN | Telecoms & Internet Converged Services & Protocols for Advanced Networks |
| TKIP | Temporal Key Integrity Protocol |
| TLB | translation lookaside buffer |
| TLD | Top Level domain |
| TLD | Top Level Domain |
| TLI | Transport Layer Interface |
| TLL | Task Library Language |
| TLM | Transportation Lifecycle Management |
| TLP | Transactional Licensing Program |
| TLS | Transport Layer Security |
| TMHES | Trend Micro Hosted Email Security |
| TMP file | temporary file |
| TMRS | traffic measurement and recording systems |
| TMS | Threat Management System |
| TMS | transportation management system |
| TNC | Trusted Network Connect |
| TNEF | Transport Neutral Encapsulation Format |
| TNS | Transaction Network Services |
| TOA | time of arrival |
| TOD | time-of-day |
| TOD | Tool on Demand |
| TOE | TCP/IP Offload Engine |
| TOFU | Trust On First Use |
| ToS | Type Of Service |
| TOSLink | Toshiba Link |
| TPF | Transaction Processing Facility |
| TPM | Transactions Per Minute |
| TPM | Trusted Platform Module |
| TP-MIC | Twisted-Pair Media Interface Connector |
| TPMs | transaction processing monitors |
| TPS | Transaction Process System |
| TPS | transactions per second |
| TPV | Third Party Vendor |
| TR | Terminal Ready |
| tracert | traceroute |
| Transceiver | Transmitter/Receiver |
| TRIP | Telephony Routing over Internet Protocol |
| TRIP | Token Ring Interface Processor |
| Triple DES / TDES | Triple Data Encryption Standard |
| TRM | Teradata Relationship Manager |
| TRS | Tip, Ring, Sleeve (cable) |
| TRUE | task-related user exit |
| TS | Terminal Server / Services |
| TS-CAL | Terminal Services - Client Access License |
| TSF | Text Services Framework |
| TSIG | Transaction Signature |
| TSM | Tivoli Storage Manager |
| TSM | trusted service manager |
| TSN | The Sierra Network |
| TSO | Time Sharing Option |
| TSOP | Thin Small Outline Package |
| TSR | Terminate and Stay Resident |
| TSRM | Tivoli Service Request Manager |
| TSV | Tab Separated Value (file) |
| TTL | Time To Live |
| TTL | Transistor Transistor Logic |
| TTP | trusted third party |
| TTS | Text-To-Speech |
| TTY | TeleTypewriter |
| TUCOWS | The Ultimate Collection of Winsock Software |
| TUP | Telephone User Part |
| TUR | trunk utilization report |
| TVO | total value of opportunity |
| TVT | ThinkVantage Technology |
| TWA | transaction work area |
| TWAIN | technology without an interesting name |
| TWX | Teletypewriter Exchange Service |
| TX | Transmit / Transmission |
| TXT | Trusted eXecution Technology |
| TXT record | Text record |
| U2F | Undetectable and Untraceable Fraud |
| UA | Users agent |
| UA | Upgrade Advantage |
| UAC | User Account Control |
| UART | universal asynchronous receiver transmitter |
| UART | universal asynchronous receiver-transmitter |
| UAT | User Acceptance Test |
| uauth | user authentication |
| UBE | unsolicited bulk email |
| UBR | Undefined Bit Rate |
| UC | Unified communications |
| UC&C (or UCC) | Unified Communications & Collaboration |
| UC2 | Unified Communications and Collaboration |
| UCB | unit control block |
| UCC | Uniform Code Council |
| UCCW | Ultimate custom widget |
| UCD | Unicode Character Database |
| UCD | Uplink Channel Descriptor |
| UCD | User-centered design |
| UCE | Unsolicited Commercial Email |
| UCM | Unified Change Management |
| UCM | Unified Computing System |
| UCM | Universal Content Management |
| UCM | Universal Customer Master |
| UCM | Use Case Maps |
| UCP | Ubuntu Certified Professional |
| UCS | Universal Character Set |
| uDAPL | User Direct Access Programming Library |
| UDDI | Universal Description, Discovery and Integration |
| UDF | user defined functions or universal disk format or universal data format |
| UDF | Universal Disk Format |
| UDLP | UniDirectional Link Protocol |
| UDMA | ultra direct memory access |
| UDMA | Ultra DMA (Ultra Direct Memory Access) |
| UDO | Ultra Density Optical |
| UDP | user datagram protocol |
| UDP | User Datagram Protocol |
| UDRP | Uniform Dispute Resolution policy |
| UFS | Unix File System |
| UGC | User generated content |
| UGS | Unsolicited Grant Service |
| UHF | Ultra High Frequency |
| UHV | Ultra High Voltage |
| UI | user interface |
| UIA | Unified Information Access |
| UL | Underwriter’s Laboratory |
| UL | Underwriters Laboratories Inc. |
| ULH | ultra-long-haul |
| ULV | Ultra Low Voltage |
| UM | Unified messaging |
| UMA | Unified-Memory Architecture |
| UMA | Unlicensed Mobile Access |
| UMA | Upper Memory Area |
| UMA | User Mode Audio |
| UMB | Ultra Mobile Broadband |
| UMB | upper memory block |
| UMC | ultra modular computing |
| UMID | Unique Material IDentifier |
| UML | Unified Modeling Language |
| UMS | Unfied Messaging Systems |
| UMTS | Universal Mobile Telecommunication System |
| UNC | universal naming convention |
| UNC | Uniform / Universal Naming Convention |
| UNI | User-to-Network Interface |
| Unicode | UNIversal CODE |
| UNR | Ubuntu Netbook Remix |
| UOL | Universo Online |
| UOW | unit of work |
| UPA | user printable area |
| UPC | Universal Product Code |
| UPnP | Universal Plug and Play |
| UPS | uninterruptible power supply |
| UPS | Uninterruptible Power Supply |
| UPT | Universal Personal Telecommunications |
| URC | Utility Ready Computing |
| URI | Uniform Resource Identifier |
| URL | uniform resource locator |
| URL | Uniform Resource Locator |
| URN | Uniform Resource Name |
| uRPF | Unicast Reverse Path Forwarding |
| URT | universal receiver transmitter |
| URT | User Registration Tool |
| USB | universal serial bus |
| USB | Universal Serial Bus |
| USB | Upper Side Band |
| USENET | USEr’s NETwork |
| USF | Universal Service Fund |
| USG | UNIX Systems Group |
| USHER | United States Higher Education Root Certificate Authority |
| USL | UNIX System Laboratories |
| USM | Unifed Service Model |
| USM | Unsharp masking |
| USMT | user state migration tool |
| USMT | User State Migration Tool |
| USO | universal service obligation |
| USP | Universal Storage Platform |
| USP | usage sensitive pricing |
| usr | Unix System Resources |
| USRT | Universal Synchronous Receiver Transmitter |
| USS | unformatted system service |
| UT | Upper Tester |
| UTF-8 | Unicode Transformation Format 8 |
| UTM | Unified Threat Management |
| UTM | Universal Transverse Mercator |
| UTP | unshielded twisted pair |
| UTP | Unshielded twisted pair |
| UTSL | Use The Source Luke |
| UUCP | Unix to Unix Copy |
| UUEE | Unix-to-Unix Encode |
| UUENCODE | Unix to Unix Encoding |
| UUG | Unix User Group |
| UUID | Universally Unique Identifier |
| UUNET | UNIX to UNIX Network |
| UUT | Unit Under Test |
| UV | UltraViolet light |
| UWB | Ultra-Wide-Band |
| UWIN | Unix for WINdows |
| UXGA | ultra extended graphics array |
| UXP | user experience |
| V H | Vertical and horizontal grid points |
| V2P | Virtual to physical |
| VA | virtual assistant |
| VAD | Value-Added Distributor |
| VAD | Voice Activity Detection |
| VADP | vStorage APIs for Data Protection |
| VAIO | Video Audio Integrated Operation |
| VAN | Value-Added Network |
| VAR | value-added reseller |
| VAROS | VAriable Refraction Optical System |
| VATH | Visual, Auditory, Tactile, Haptic |
| VAX | Virtual Address Extension |
| VB | Visual Basic |
| VBA | Virtual backup appliance |
| VBA | Visual Basic for Applications |
| vBNS | very high-speed Backbone Network Service |
| VBR | variable bit rate |
| VBR | Very Busy Run |
| VBUG | Voice Browser Usability Group |
| VBX | Visual Basic Custom Control |
| VC | Videoconference |
| VC | Virtual Channel |
| VC | Virtual circuit |
| VCB | VMware Consolidated Backup |
| VCC | Voice Call Continuity |
| VCD | Video Compact Disc |
| VCDX | VMware Certified Design Expert |
| VCI | Virtual Channel Identifier |
| VCM | Virtual Channel Memory |
| VCO | voltage-controlled oscillator |
| VCP | Value Chain Planning |
| VCP | VMware Certified Professional |
| VCR | video cassette recorder |
| VD | Virtual Disk |
| Vdeck | Video Deck |
| VDI | Virtual desktop infrastructure |
| VDR | virtual deal room |
| VDS | Variable Drop Size |
| VDS | visual data stream |
| VDSL | very high-speed digital subscriber line |
| VDT | Video Display Terminal |
| VDU | Visual Display Unit |
| VEP | vertical enterprise portal |
| Veronica | Very Easy Rodent Oriented Net-wide Index to Computerized Archives |
| VESA | Video Electronics Standards Association |
| VESA | Video Electronics Standards Association |
| VF | Voice Frequency |
| VFAT | virtual file allocation table |
| VFM | virtual file manager |
| VGA | video graphics array |
| VGA | Video Graphics Array |
| VGF | voice grade facility |
| VHD | Virtual Hard Drive |
| VHDL | VLSI Hardware Description Language |
| VHDTS | Very High Density Thumb Screw |
| VHF | very high frequency |
| VHLL | Very-High-Level Language |
| VHM | Voice Health Monitor |
| VHS | video home system |
| VIC | Voice Interface Card |
| VIM | Vendor Independent Messaging protocol |
| VIM | Vendor Independent Messaging |
| Vines | VIrtual NEtwork System |
| VIO | virtual input/output |
| VIP | VeriSign Identity Protection |
| VITAL | VHDL Initiative for the Standardization of ASICÂ Libraries |
| VIVO | Video In Vide o Out |
| VLA | Volume License Agreement |
| VLAN | Virtual local area network |
| VLAN | virtual local-area network |
| VLC | VideoLan Client |
| VLDB | very large database |
| VLE | Virtual Learning Environment |
| VLF | Very Low Frequency |
| VLF | Virtual Log File |
| VLIW | Very Long Instruction Word |
| VLK | Volume License Key |
| VLL | Virtual Leased Line |
| VLR | Visitor Location Register |
| VLS | Virtual Library Systems |
| VLSI | Very Large Scale of Integration |
| VLSM | Variable Length Subnet Masking |
| VLSM | Variable-length subnet masking |
| VM | virtual machine |
| v-mail | Video mail |
| VMDQ | Virtual Machine Device Queues |
| VMEbus | VersaModule Eurocard bus |
| VMI | vendor-managed inventory |
| VML | Vector Markup Language |
| VMM | virtual machine monitor |
| VMS | Virtual Memory System |
| VMS | Vocabulary Management Solution |
| VMS | Voice Message Service |
| VNC | Virtual Network Computing |
| VNL | via net loss |
| VNO | virtual network operator |
| VoD | Video On Demand |
| Vodcast | video podcasting |
| VoIP | voice over internet protocol |
| VoIP | voice over Internet Protocol |
| Voken | virtual token |
| VOM | Volt-Ohm-Milliammeter |
| VOP | Velocity of Propagation |
| vortal | Vertical portal |
| VOX | Voice Operated eXchange |
| voxel | Volume pixel, or volume picture element |
| VoxML | Voice Markup Language |
| VPA | valid printable area |
| VPA | Volume Procurement Amendment |
| VPD | Vital Product Data |
| VPDN | Virtual Private Dial-up Network |
| VPI | Virtual Path Indentifier |
| VPLS | virtual private LAN service |
| VPN | virtual private network |
| VPN | Virtual Private Networking |
| VPN | Virtual private network |
| VPS | Vectors Per Second |
| VPS | Virtual private server |
| VQF | Vector Quantization Format |
| VR | Virtual reality |
| VRAM | video random access memory |
| VRC | Vertical Redundancy Check |
| VRF | VPN routing/forwarding instance |
| VRM | voltage regulator module |
| VRML | Virtual Reality Modeling Language |
| VRRP | Virtual Router Redundancy Protocol |
| VRS | Virtual Reference Station |
| VRT | Variable-Rate Technology |
| VRU | voice response unit |
| VSAM | Virtual Sequential Access Method |
| VSAM | Virtual Storage Access Method |
| VSAT | very small aperture terminal |
| VSB | very severe burst |
| VSB | Vestigial sideband |
| VSD | ViSio Diagram |
| VSE | Virtual Storage Extended |
| VSELP | Vector Sum Excited Linear Predictive |
| VSIP | Visual Studio Industry Partners |
| VSM | Value Stream Mapping |
| VSN | volume serial number |
| VSNL | Videsh Sanchar Nigam Limited |
| VSP | VoIP Service Provider |
| VSR | Vertical Scan Rate |
| VSS | vector symbol set |
| VSS | Volume Shadow Copy |
| VSwitch | Virtual Switch |
| VSWR | Voltage Standing Wave Ratio |
| VTAM | Virtual Table Access Method |
| VTAM | Virtual Telecommunications Access Method |
| VTL | virtual tape library |
| VTOC | Volume Table of Contents |
| VTP | Vlan Trunking Protocol |
| VTS | virtual tape subsystem |
| VT-x/i or d or c | Virtualization Technology-Itanium |
| VTY | Virtual teleTYpewriter |
| VUE | Visual User Environment |
| VVM | Veritas Volume Manager |
| VVR | Veritas Volume Replicator |
| VWE | virtual work environment |
| VWIC | Voice/Wan Interface Card |
| VWS | Virtual Web Server |
| VxD / VDD | Virtual Device Driver |
| W3C | World Wide Web Consortium |
| W3C | World Wide Web Consortium |
| WAA | Wide Area Adapter |
| WAAS | Wide Area Augmentation System |
| WAB | Windows Address Book |
| WAC | Wholesale Applications Community |
| WACK / WAK | Wait acknowledgement |
| WADS | write-ahead data set |
| WAE | Wireless Application Environment |
| WAF | Web application firewall |
| WAI-ARIA | Web Accessibility Initiative - Accessible Rich Internet Applications |
| WAIS | Wide Area Information Servers |
| WAL | wats access line |
| WALE | wats access line extension |
| WAMP | Windows, Apache, Mysql, PHP (or Perl or Phyton) |
| WAN | wide area network |
| WAN | Wide-area network |
| WAP | wireless application protocol |
| WAP | Wireless Application Protocol |
| WARIA | Workflow And Reengineering International Association |
| WAS | Web Application Server |
| WATS | Wide Area Telecommunications/Telephone Service |
| WAVE | Engine |
| WAVE | Wide Area Virtualization |
| WBEM | Web-Based Enterprise Management |
| WBMP | Wireless BitMaP |
| WCF | Windows Communication Foundation |
| WCS | Web customer service |
| WCS | Websphere Commerce Server |
| WD | Western Digital |
| WDDM | Windows Display Driver Model |
| WDDX | Web Distributed Data Exchange |
| WDF | Windows Driver Foundation |
| WDM | Wavelength Division Multiplexing |
| WDOG | Watchdog protocol |
| WDS | Wireless Distribution System |
| WDT | watchdog timer |
| WebCam | WEB CAMera |
| WebDAV | Web-based Distributed Authoring and Versioning |
| webinar | (web seminar) |
| WEEE | Waste Electrical and Electronic Equipment |
| WEP | wired equivalent privacy |
| WEP | Wired Equivalent Privacy |
| WES | Websense Email Security |
| WFM | Wired For Management Baseline |
| WfMC | WorkFlow Management Coalition |
| WFO | workforce optimization |
| WFQ | weighted fair queuing |
| WGA | Windows Genuine Advantage |
| WHISPER | Windows Highly Intelligent SPEech Recognition |
| WHQL | Windows Hardware Quality Lab |
| WIA | Windows Image Acquisition |
| WiBro | Wireless Broadband |
| WIC | Wan Interface Card |
| WIFI | wireless fidelity |
| Wi-Fi | IEEE 802.11 (Wi-Fi Alliance) |
| Wi-Fi | Wireless Fidelity |
| wiki | What I Know Is |
| WiMax | World Interoperability for Microwave Access |
| WIMPS | windows, icons, menus, pointers, scroll bars |
| WINE | Wine Is Not an Emulator |
| WinFS | Windows Future Storage |
| Winkey | Windows key |
| WINS | windows internet name service |
| WINS | Windows Internet Name Service |
| Winsock | Windows sockets |
| Wintel (slang) | Windows and Intel |
| WIPO | World Intellectual Properties Organization |
| WLAN | wireless local area network |
| WLAN | wireless LAN |
| WLL | wireless local loop |
| WMI | Windows Management Instrumentation |
| WML | Website Meta Language |
| WML | Wireless Markup Language |
| WMOS | Warehouse Management for Open Systems |
| WMP | Windows Media Player |
| WMS | warehouse management system |
| WOA | Web-oriented architecture |
| WOL | Wake On LAN |
| WORM | write once, read many |
| WOS | Wireless Office Systems |
| WOSA | Windows Open Service Architecture |
| WOW | World of Warcraft |
| WOW | World Organization of Webmasters |
| WPA | wireless protected access |
| WPA | Wi-Fi Protected Access |
| WPAD | Web Proxy AutoDiscovery |
| WPAR | Workload PARtition |
| WPF | Windows Presentation Foundation |
| WPLO | Warranty Parts/Labor/Onsite |
| wpm | Words Per Minute |
| WPN | Worldwide Port Name |
| WQUXGA | Wide Quad Ultra eXtended Graphics Array |
| WRC | World Radiocommunication Conference |
| WRED | Weighted Random Early Detection |
| WRS | Wind River Systems |
| WRT | Weighted Risk Trend |
| WSC | Windows Security Center |
| WSD | white space device |
| WSE | Web Services Enhancements |
| WSFC | Windows Server Failover Clustering |
| WSJ | Wall Street Journal |
| WSP | Web Standards Project |
| WSP | Wireless Session Protocol |
| WSS | Windows Sharepoint Services |
| WS-Secuirty | Web Services Security |
| WTG | Wily Transaction Generator |
| WTL | Windows Template Library |
| WTLS | Wireless Transport Layer Security |
| WTX | Workstation Technology eXtended |
| WUS | Windows Update Services |
| WUXGA | wide ultra extended graphics array |
| WVA | Wide Viewing Angle |
| WWAN | wireless wide-area network |
| WWN | World wide name |
| WWNN | worldwide node name |
| WWPN | worldwide port name |
| www | World Wide Web |
| WYSIWYG | what you see is what you get |
| WZC | Wireless Zero Configuration |
| X3D | Extensible 3D Graphics |
| x86 | 8086 processor |
| XaaS | anything as a service |
| XACML | Extensible Access Control Markup Language |
| XAF | eXpressApplication Framework |
| XAMPP | Cross-platform/Apache/MySQL/PHP/Perl |
| XBL | XMLÂ Binding Language |
| XBMC | XBox Media Center |
| XBRL | Extensible Business Reporting Language |
| XCP | eXtended Copy Protection |
| XDCC | Xabi DCC or eXtended DCC |
| XDE | eXtended Development Experience |
| XDM | X Display Manager |
| XDO | extended data object |
| XDR | eXternal Data Representation |
| xDSL | x digital subscriber line |
| XE | Express Edition |
| XFDL | Extensible Forms Description Language |
| XFN | XHTML Friends Network |
| xfr | transfer |
| XGA | extended graphics array |
| XGA | Extended Graphics Array |
| XHR | XmlHttpRequest |
| XHTML | Extensible Hypertext Markup Language |
| XID | exchange identification |
| XID | exchange station ID |
| XIL | X Imaging Library |
| XLF | Extensible Log Format |
| XLL | Extensible Linking Language |
| XLS | eXceL Spreadsheet |
| XMCL | Extensible Media Commerce Language |
| XMI | XML Metadata Interchange |
| XML | Extensible Markup Language |
| XML | Extensible Markup Language |
| XMLC | eXtensible Markup Language Compiler |
| XMLRPC | XML Remote Procedure Call |
| XMP | eXtensible Metadata Platform |
| XMPP | eXtensible Messaging and Presence Protocol |
| XMS | Extended Memory Specification |
| XMS | Xirrus Management System |
| xmt | transmit |
| XNI | Xerces Native Interface |
| XNRL | Xml Namespace Related-resource language |
| XNS | Xerox Network Systems |
| XO | crystal oscillator |
| XOFF | Transmitter off |
| XoIP | Anything Over IP |
| XON | Transmitter on |
| XOP | Xml-binary Optimized Packaging |
| XOR | exclusive-OR gate |
| XP | eXPerience |
| XP | Extreme Programming |
| XPath | XML Path Language |
| XPFE | Cross Platform Front End |
| xPGK | xPEERience gatekeeper/proxy |
| XPL | Carrier Private Line |
| XPLINK | Extra Performance Linkage |
| XPS | Xml Paper Specification |
| XQL | XML Query Language |
| XRC | extended remote copy |
| XRE | Xul Runtime Engine |
| XrML | Extensible Rights Markup Language |
| XRST | extended restart |
| XSD | Xml Schema Definition |
| XSL | extensible Stylesheet Language |
| XSLT | eXtensible Style Language Transformation |
| XSS | Cross-Site Scripting |
| XT | crosstalk |
| XT | Extended Technology |
| XTI | UNIX Transport Layer Interface |
| XTM | Extensible Threat Management |
| XTP | Extreme transaction processing |
| XTPP | extreme transaction processing platform |
| XTR | Efficient Compact Subgroup Trace Representation |
| XTR | Extreme Reality |
| XUL | eXtensible User-interface Language |
| xVM | intersection (x) of virtualization and management |
| XVT | Extensible Virtual Toolkit |
| XWB | eXtend WorkBench |
| XWSS | Xml and WebServices Security |
| Y2K | Year 2000 |
| YA- | Yet Another |
| yacc | yet another compiler compiler |
| YAHU | Yet Another Header Utility |
| YAST | Yet Another Setup Tool |
| YB | Yottabyte |
| YES | Yahoo! Enterprise Solutions |
| YiB | Yobibyte |
| YIM | Yahoo! Instant Messenger |
| YKYBHTLW | you know you’ve been hacking too long when |
| YMMV | our mileage may vary |
| YP | Yellow Pages |
| YPN | Yahoo Publishers Network |
| YUB | luminance (Y) chroma (UV) |
| YYYY-MM-DD | Year Year Year Year - Month Month - Day Day |
| ZAPP | Zero Assignment Parallel Processor |
| ZAW | Zero Administration Window |
| ZB | Zettabyte |
| ZBR | Zero Bug Release |
| ZBR / ZCAV | Zoned-bit recording / Zone Constant Angular Velocity |
| ZBTSI | Zero Byte Time Slot Interchange |
| ZCS | zero code suppression |
| ZCT | zero count table |
| ZDBop | Ziff-Davis Benchmark Operation |
| ZDL | Zero Delay Lockout |
| ZDN / ZDNet | Ziff Davis Network |
| ZDO | ZigBee Device Object |
| Zeroconf | zero configuration (IP networking) |
| ZFS | Zettabyte File System |
| ZIF | zero-insertion-force |
| ZIF | Zero Insertion Force |
| ZIL | Zork Implementation Language |
| zine | electronic magazine |
| ZINK | Zero INK |
| ZIP | zigzag inline package |
| ZIP | Zone Information Protocol |
| ZLE | zero-latency enterprise |
| ZMA | Zone Multicast Address |
| ZNA | Zero Network Administration |
| ZOPE | Z Object Publishing Environment |
| ZRTP | (Zimmerman ) Real-Time Transport Protocol |
| zsh | Z shell |
| ZTE | Zhong Xing Telecommunication Equipment |
| ZTLP | Zero Transmission Level Point |
| ZV port / ZVP | Zoomed Video port |
| ZZFS | zSeries File System |
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