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Computer Acronyms


Ever get confused about the Alphabet Soup of computer terminology? If so, we hope you can find your answer here.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


    A

  • A-D Analog to Digital
  • AA Author's Alteration
  • AA Auto Answer
  • AAL5 ATM Adaption Layer 5
  • ABEND Abnormal End
  • ABI Application Binary Interface
  • ABR Available Bit Rate
  • AC97 Audio Codec 97
  • ACB Access method Control Block
  • ACDS Active Control Data Set
  • ACE Asynchronous Communications Element
  • ACF Advanced Communication Facility
  • ACIA Asynchronous Communications Interface Adapter
  • ACK Acknowledge
  • ACS Asynchronous Connection Server
  • ACS Automatic Class Selection
  • ACSE Application Control Service Element
  • ACT Application Control Table
  • ACU Automatic Calling Unit
  • ADC Analog Digital Converter
  • ADDMD Administrative Directory Management Domain
  • ADMD Administrative Management Domain
  • ADO ActiveX Data Object
  • ADSL Asymetric Digital Subscriber Line
  • AEA Activity End Acknowledge
  • AEI Application Entity Invocation
  • AF Application Framework
  • AFP Advanced Function Printing
  • AGP Accellerated Graphics Port
  • AGS Advanced Graphics System
  • AI Artificial Intelligence
  • AIU Application Interface Unit
  • AIX Advanced Interactive eXecutive
  • AIX Alternate IndeX
  • ALGOL ALGOrithmic Language
  • ALS Application Layer Structure
  • ALS Automatic Line Switching
  • ALT Application Load Table
  • ALU Arithmetic and Logic Unit
  • AM Access Method
  • AMH Automated Material Handling
  • AMI Alternate Mark Inversion
  • AMIS Audio Messaging Interchange Specification
  • AMR Audio Modem Riser
  • AMS Access Method Services
  • ANR Automatic Network Routing
  • ANS Advanced Network Services
  • ANSI American National Standards Institute
  • AOCE Apple Open Collaboration Environment
  • AOW Asian and Oceanic Workshop for open systems
  • AP Access Point
  • AP Automation Protocol
  • APA All Points Addressable
  • APDU Application Protocol Data Unit
  • API Application Programming Interface
  • APIA API Association
  • APL A Programming Language
  • APPC Advanced Program-to-Program Communication
  • APPI Advanced Peer-to-Peer Internetwork(ing)
  • APPN Advanced Peer-to-Peer Network(ing)
  • APS Advanced Production System
  • AR Attention Routine
  • ARP Address Resolution Protocol
  • ARPA Advanced Research Projects Agency
  • ARPANET Advanced Research Projects Agency Network
  • ARU Audio Response Unit
  • AS Activity Start
  • AS Autonomous System
  • ASC Accredited Standards Committee
  • ASCII American Standard Code for Information Interchange
  • ASE Application Service Element
  • ASIC Application-Specific Integrated Circuit
  • ASN Abstract Syntax Notation
  • ASN.1 Abstract Syntax Notation One
  • ASO Application Service Object
  • ASR Automatic Speech Recognition
  • ASTs Asynchronous System Traps
  • AT Advanced Technology
  • ATM Adobe Type Manager
  • ATM Asynchronous Transfer Mode
  • ATM Automatic Teller Machine
  • ATMP Ascend Tunnel Management Protocol
  • ATSF Alert Transport Service Facility
  • AU Access Unit
  • AVR Automatic Volume Recognition
  • AWG American Wire Gauge
  • B

  • B8ZS Binary Eight Zero Substitution
  • BABT British Approvals Board for Telecommunications
  • BAL Business Application Language
  • BAM Basic Access Methods
  • BAS Basic Activity Subset
  • BASH Bourne-Again SHell
  • BASIC Beginners All-Purpose Symbolic Instruktion Code
  • BBS Bulletin Board System
  • BCC Block Check Character
  • BCD Binary Coded Decimal
  • BCF Bridge Control Facility
  • BCPL Basic Combined Programming Language
  • BCS Basic Catalog Structure
  • BCS Basic Combined Subset
  • BDAM Basic Direct Access Method
  • BDR Basic Density Range
  • BEL Bell
  • BER Bit Error Rate
  • BES Bursty Errored Seconds
  • BG BackGround
  • BHT Branch History Table
  • BIOS Basic Input/Output System
  • BIS Business Information System
  • BISYNC Binary Synchronous Communication
  • BIT Binary Digit
  • BITNIC Bitnet Network Information Center
  • BLOB Binary Large Object
  • BMIC Bus Master Interface Controller
  • BMP BitMaP
  • BMS Basic Mapping Support
  • BNN Boundary Network Node
  • BOC Bell Operating Companies
  • BOT Begin Of Tape
  • BP Base Pointer
  • BPAM Basic Partitioned Access Method
  • BPI Bytes Per Inch
  • BPS Bites Per Second
  • BRA Basic Rate Access
  • BRI Basic Rate Interface
  • BS Backspace / British Standard
  • BSA Basic Service Area
  • BSAM Basic Sequential Access Method
  • BSC Binary Synchronous Communication
  • BSD Berkeley Software Distribution
  • BSDS BootStrap Data Set
  • BSI British Standards Institute
  • BSS Basic Synchronous Subset
  • BTAC Branch Target Address Cache
  • BTAM Basic Teleprocessing Access Method
  • BTA-ES Basic Teleprocessing Access Method - Extended Storage
  • BYP Bypass
  • C

  • CA Collision Avoidance
  • CA... Computer Aided ...
  • CAA Computer Aided Architecture
  • CAD Computer Aided Design
  • CADD Computer Aided Design and Drafting
  • CADIS Computer Aided Design Interactive System
  • CAE Common Application Environment
  • CAE Computer Assisted Education, Computer Aided Engineering = CAD +
  • CAP + CAQ
  • CAH Computer Aided Handling
  • CAI Computer Aided Instruction = CIM + CAO
  • CAISE Computer Aided Integrated Software Engineering
  • CALS Computer Aided Acquisition and Logistic Support
  • CAM Computer Aided Manufacturing / Content Adressable Memory
  • CAMAC Computer Automated MeAsurement Control
  • CAN Cancel
  • CAO Computer Aided Office
  • CAP Computer Aided Planning / Computer Aided Publishing
  • CAPP Computer Aided Production Planning
  • CAPPC Computer Aided Production Planning and Control
  • CAPSC Computer Aided Production Scheduling and Control
  • CAQ Computer Aided Quality Assurance
  • CAR Computer Aided Roboting
  • CAR Computer Assisted Radiology
  • CAS Computer Aided Selling
  • CASE Common Application Service Elements
  • CASE Computer Aided Software-Engineering
  • CAT Computer Aided Testing
  • CATV CAble TeleVision
  • CBDS Connectionless Broadband Data Service
  • CBEMA Computer and Business Equipment Manufacturers' Association
  • CBR Constant Bit Rate
  • CBT Computer Based Training
  • CCD Charge-Coupled Device
  • CCETT Centre Commun d'Etudes de Telediffusion et Telecommunications
  • CCIR International Radio Consultative Committee
  • CCITT Comite Consultatif International Telegraphique et Telephonique
  • CCR Committment, Concurrency and Recovery
  • CCS Common Communication Support
  • CCTA Central Computer and Telecommunications Agency
  • CCU Communication Control Unit
  • CCW Channel Command Word
  • CD Collision Detection
  • CD Compact Disk
  • CDB Command Descriptor Block
  • CDC Century Date Change
  • CDDA Compact Disk - Digital Audio
  • CDDI Copper Data Distribution Interface
  • CDE Common Desktop Environment
  • CDG Compact Disk - Graphic
  • CDI Compact Disk Interactive
  • CDMA Code Division Multiple Access
  • CDPD Cellular Digital Packet Data
  • CDR Copy Density Range
  • CDROM Compact Disk ROM
  • CDTV Commodore Total Vision
  • CDXA Copmact Disk eXtended Architecture
  • CEC Commission of European Communities
  • CEFIC Conseil Européen des Federations de l'Industrie Chimique
  • CELP Code Excited Linear Prediction
  • CEN Comité Européen de Normalisation
  • CENELEC Comité Européen de Normalisation Electrotechnique
  • CEO Comprehensive Electronic Office
  • CEPT Conference Européenne des Administrations des Postes et
  • des Telecommunications
  • CERN Conseil Européen pour la Recherche Nucléaire
  • CF Call Forwarding
  • CF Carry Flag
  • CF Control Function
  • CFV Call For Votes
  • CGA Colour Graphics Adapter
  • CGI Common Gateway Interface
  • CGI Computer Graphics Interface
  • CGM Computer Graphics Metafile
  • CHAP Challenge-Handshake Authentication Protocol
  • CHL-I CHanneL Interface
  • CHPID CHannel Path IDentifier
  • CI Computer Interconnect
  • CI Control Interval
  • CIAM Computer Integrated and Automated Manufacturing
  • CIB Computer Integrated Business
  • CICS Customer Information Control System
  • CID Configuration, Installation and Distribution
  • CIF Cells In Frames
  • CIF Common Intermediate Format
  • CIF Computer Integrated Factory = CIO + CIM
  • CIM Computer Input by Microfilm
  • CIM Computer Integrated Manufacturing = PPS + CAE + CAM
  • CIO Computer Integrated Office
  • CIR Committed Information Rate
  • CIS Card Information Structure
  • CISC Complex (Complete) Instruction Set Computer
  • CIT Computer Integrated Telephony
  • CIV Conversation Verb Interface
  • CKD Count Key Data
  • CL Core Image Library
  • CL Connectionless
  • CLI Call Level Interface
  • CLIM Compaq/Lotus/Intel/Microsoft
  • CLNS Connectionless Network Service
  • CM/2 Communication Manager / 2
  • CMC Communication Management Configuration
  • CMEA Council for Mutual Economic Assistance
  • CMIP Common Management Information Protocol
  • CMIS Common Management Information Service
  • CMOS Cellular Management Operation System
  • CMOS Complimentary Metal Oxide Semiconductor
  • CMOT Common Management Information Protocol (CMOT) Over TCP/IP
  • CMR Communications Resource Manager
  • CMS Conversational Monitor System
  • CMYK Cyan, Magenta, Yellow, Black
  • CN Corporate Network
  • CNC Computerized Numerical Control
  • CNLP Connectionless Network Protocol
  • CNM Communication Network Management
  • CNMA Communication Network for Manufacturing Applications
  • CNR Carrier-to-Noise-Ratio
  • COBOL COmmon Business Oriented Language
  • COCOM Coordinating Comittee on Multilateral Export Controls
  • CODASYL COnference on DAta SYstems Languages
  • Codec Coder/Decoder
  • COFF Common Object File Format
  • COM Common Object Model
  • COM Computer Output on Microfilm
  • COMAL COMmon Algorithmic Language
  • COMREG Communication Region
  • CONS Connection-Oriented Network Service
  • CORBA Common Object Request Broker Architecture
  • COS Corporation for Open Systems
  • COSE Common Open Software Environment
  • COSINE Cooperation for OSI Networking in Europe
  • COSS Cross Operating System Service
  • CP Control Program
  • CP-SVR Control Point to Server
  • CP/M Control Program/Monitor (for Microcomputer)
  • CPE Customer Premises Equipment
  • CPI Characters Per Inch
  • CPI Common Programming Interface
  • CPI Computer to PABX Interface
  • CPIC Common Programming Interface for Communications
  • CPL Current Privilege Level
  • CPR Computerized Patient Record
  • CPS Characters Per Second
  • CPU Central Processing Unit
  • CR Carriage Return
  • CR Communication Region
  • CRC Cyclic Redundancy Check
  • CRJE Conversational Remote Job Entry
  • CRS Computer Reservation System
  • CRS Configuration Report Server
  • CRT Cathode Ray Tube
  • CS Communications Server
  • CSA Common System Area
  • CSC Cross System Consistency
  • CSDN Circuit Switched Data Network
  • CSECT Control Section
  • CSI Consolidated Software Inventory
  • CSLIP Compressed SLIP
  • CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
  • CSMA/CD Carrier Sense Multiple Access with Collision Detection
  • CSP Control Sequence Prefix
  • CSP Cross System Product
  • CSPDN Circuit Switched Public Data Network
  • CST Computer Supported Telephony
  • CSU Channel Service Unit
  • CSU/DSU Channel Service Unit / Data Service Unit
  • CT Continuous Tone
  • CT2T Continuous Tone To Tape
  • CTC Channel To Channel
  • CTC CICS To CICS
  • CTS Clear To Send
  • CTS Conformance Test System
  • CTS-WAN Conformance Testing Services for WAN
  • CU Control Unit
  • CUA Common User Access
  • CUT Control Unit Terminal
  • CVOL Control VOLume
  • CWS Coalition for Working Systems
  • D

  • D/A Digital/Analog
  • DA Desk Accessory
  • DAC Digital Analog Converter
  • DAC Dual Attachment Concentrator
  • DAI Distributed Artificial Intelligence
  • DAM Direct Access Method
  • DAP Directory Access Protocol
  • DAP Document Application Profile
  • DARPA Defense Advanced Research Projects Agency
  • DAS Dual Attachment Station
  • DASD Direct Access Storage Device
  • DAT Digital Audio Tape
  • DAT Dynamic Address Translation
  • DB Database
  • DBCS Double Byte Character Set
  • DBMS DataBase Management System
  • DBRT Directed Beam Refresh Terminal
  • DC Data Cartridge
  • DC Data Communication
  • DCA Document Content Architecture
  • DCAF Distributed Console Access Facility
  • DCB Data Control Block
  • DCB Disk Coprocessor Board
  • DCC Diskette Controller Chip
  • DCE Data Circuit terminating Equipment
  • DCE Data Communications Equipment
  • DCE Distributed Computing Environment
  • DCI Display Control Interface
  • DCL Digital Command Language
  • DCS Desktop Color Separation
  • DCT Destination Control Table
  • DCT Discrete Cosine Transform
  • DD Data Definition
  • DDCMP Digital Data Communications Message Protocol
  • DDCS Distributed Database Connecion Services/2
  • DDE Dynamic Data Exchange
  • DDES Digital Data Exchange Specifications
  • DDI Device Driver Interface
  • DDK Driver Development Kit
  • DDL Data Definition Language
  • DDL Document Description Language
  • DDM Distributed Data Management
  • DDN Defense Data Network
  • DDP Distributed Data Processing
  • DDRM Device driver interface/Driver kernel interface
  • Reference Manual
  • DDS Dataphone Digital Service
  • DDS Decision Support System
  • DECT Digital European Cordless Telephone
  • DECUS Digital Equipment Computer Users Society
  • DEL Delete
  • DES Data Encryption Standard
  • DF Direction Flag
  • DFC Distributed Coordination Function
  • DFDSS Data Facility Data Set Services
  • DFHSM Data Facility Hierarchical Storage Manager
  • DFP Data Facility Product
  • DFR Document Filing and Retrival
  • DFS Distributed File System
  • DFSMS Data Facility Storage Management Subsystem
  • DFSORT Data Facility Sort
  • DFT Distributed Function Terminal
  • DFWMAC Distributed Foundation Wireless Media Access Control
  • DHCP Dynamic Host Configuration Protocol
  • DIA Document Interchange Architecture
  • DIB Data Input Bus
  • DIB Device Independent Bitmap
  • DIFS Distributed coordination function InterFrame Space
  • DIMM Dual Inline Memory Module
  • DIP Dual Inline Package
  • DIS Draft International Standard
  • DISSOS Distributed Office Support System
  • DIT Directory Information Tree
  • DKI Driver Kernel Interface
  • DL Data Length
  • DL Directory Listing
  • DL/1 Data Language 1
  • DLBL Disk Label
  • DLCI Data Linc Connection Identifier
  • DLE Data Link Escape
  • DLL Dynamic Link Library
  • DLS Device Level Selection
  • DLSE Device Level Selection Enhanced
  • DLSw Data Link Switching
  • DLUR Dependent LU Requester
  • DLUR/S Dependent LU Requester / Server
  • DLUS Dependent LU Server
  • DMA Direct Memory Access
  • DMCI Direct Memory Communications Interface
  • DMD Directory Management Domain
  • DMI Digital Multiplexed Interface
  • DML Data(base) Manipulation Language
  • DMNL Direct Multi Network Link
  • DMP Dot Matrix Printer
  • DN Distinguished Name
  • DNA Digital Network Architecture
  • DNS Domain Name Service
  • DOC Display Operator Console
  • DOE Distributed Objects Everywhere
  • DOMF Distributed Object Management Facility
  • DOS Declaration Of Support
  • DOS Disk Operating System
  • DOS/VS Disk Operating System / Virtual Storage
  • DOS/VSE Disk Operating System / Virtual Storage Extended
  • DP Data Processing
  • DP Draft Proposal
  • DPA Document Printing Application
  • DPF Data Private Facility
  • DPI Dots Per Inch
  • DPL Descriptor Privilege Level
  • DPMS Display Power Management Signaling
  • DPS Dynamic Path Selection
  • DQDB Distributed Queue Dual Bus
  • DRAM Dynamic Random Access Memory
  • DRQ Data ReQuest
  • DS Digit Select
  • DS Directory System
  • DSA Directory System Agent
  • DSA Distributed Systems Architecture
  • DSA Dynamic Storage Area
  • DSF Device Support Facility
  • DSL Direct Swift Link
  • DSN DataSetName
  • DSN Distributed Systems Network
  • DSNL Direct Swift Network Link
  • DSOM Distributed System Object Model
  • DSP Digital Signal Processor
  • DSP Directory System Protocol
  • DSR Data Set Ready
  • DSSI Digital Storage Systems Interconnect
  • DSU Data Service Unit
  • DTAM Document Transfer, Access and Manipulation
  • DTD Document Type Definition
  • DTE Data Terminal Equipment
  • DTI Department of Trade and Industry (UK)
  • DTP DeskTop Publishing
  • DTR Data Terminal Ready
  • DU Data Unit
  • DUA Directory User Agent
  • DUN Dispatch Unit Number
  • DVI Digital Video Interface
  • DVST Direct View Bistable Storage
  • DXI Data eXchange Interface
  • E

  • E1 2,048 Mbps
  • E3 34 Mbps
  • EARN European Academic and Research Network
  • EB Error Bell
  • EB ExaByte (1,152,921,504,606846,976 bytes)
  • EBAM Electronic Beam-Addressable Memory
  • EBCD Extended Binary Coded Decimal
  • EBCDIC Extended Binary Coded Decimal Interchange Code
  • ECC Error Checking and Correction
  • ECC Error Correction Code
  • ECE Economic Commission for Europe
  • ECF Enhanced Connectivity Facility
  • ECITC European Committee fo IT Testing and Certification
  • ECKD Extended Count-Key Data
  • ECMA European Computer Manufacturers Association
  • ECTUA European Counsil for Telecommunications Users Association
  • EDC Enterprise Database Connectivity
  • EDF Execution Diagnostic Facility
  • EDG Electronic Dot Generation
  • EDI Electronic Data Interchange
  • EDICON EDI Community for the Construction Industry (UK)
  • EDIF Electronic Design Interchange Format
  • EDIFACT Electronic Data Interchange For Administration, Commerce and
  • Transport
  • EDIM Electronic Data Interchange Message
  • EDIMS EDI Messaging System
  • EDM Engineering Data Management
  • EDP Electronic Data Processing
  • EDR Early Device Release
  • EEMA European Electronic Mail Association
  • EFT Electronic Funds Transfer
  • EGA Enhanced Graphics Adapter
  • EGP Exterior Gateway Protocol
  • EHLLAPI Emulator High Level Language Applications Programming Interface
  • EIB Execute Interface Block
  • EIP Execute Interface Program
  • EISA Extended Industry Standard Architecture
  • EIT Encoding Information Type
  • EIUF European ISDN User Forum
  • ELAN European LAN
  • ELAN Extended LAN
  • ELAN Emulated LAN
  • EM End of Medium
  • EMA Enterprise Management Architecture
  • EMS Expanded Memory Specification
  • EMUG European MAP Users Group
  • EN European Norme
  • ENE Enterprise Network Event
  • ENP Enable Presentation
  • ENQ Enquiry
  • EO Eight Ones
  • EOB End of Block
  • EOC End of Cylinder
  • EOF End of File
  • EOJ End of Job
  • EOP End of Procedure
  • EOT End of Transmission
  • EOV End of Volume
  • EP Emulation Program
  • EPDE Electronic Product Data Exchange
  • EPOW Emergency Power Off Warning
  • EPROM Eraseable Programable Read Only Memory
  • EPS Encapsulated PostScript
  • EPSF Encapsulated PostScript Format
  • ER Entity Relationship
  • ERDS Error Recording Data Set
  • EREP Environmental Record Editing and Printing program
  • ES Errored Second
  • ESA Extended Service Area
  • ESC Escape
  • ESCON Enterprise System Connection Architecture
  • ESD Electronic Software Distribution
  • ESD External Symbol Dictionary
  • ESDI Enhanced Small Device Interface
  • ESDS Entry Sequenced Data Set
  • ESF Extended SuperFrame
  • ESPRIT European Strategic Programme for Research and development in
  • Information Technology
  • ESQA Extended System Queue Area
  • ETB End of Transmission Block
  • ETCOM European Testing and Certification for Office and
  • Manufacturing protocols
  • ETS European Telecommunication Standard
  • ETSI European Telecommunication Standards Institute
  • ETX End of Text
  • EUnet European Unix Network
  • EUUG European Unix User Group
  • EVI EVent Information
  • EWOS European Workshop for Open Systems
  • EXCP EXecute Channel Program
  • EZ Excessive Zeros
  • F

  • F/STP Foil STP
  • FA Foreign Agent
  • FAQ Frequently Asked Questions
  • FAST Federation Against Software Theft
  • FAT File Allocation Table
  • FBA Fix Block Architecture
  • FBA Fixed Blocked ANSI-defined printer control characters
  • FBM Fix Block Modus
  • FC File Control
  • FCB Format Control Buffer
  • FCP File Control Program
  • FCS Frame-Check Sequence
  • FCT File Control Table
  • FDD Fixed Disk Drive
  • FDDI Fiber Distributed Data Interface
  • FEAL Fast Data Encipherment Algorithm
  • FEP Front-End Processor
  • FF Formfeed
  • FH Frame Handler
  • FIFO First In, First Out
  • FIPS Federal Information Processing Standard
  • FLOPS Floating-point operations per second
  • FMLI Forms and Menu Language Interpreter
  • FOB Form Overlay Buffer
  • FOND Font family descriptor
  • FORTRAN FORmula TRANslator
  • FPU Floating Point Unit
  • FRAD Frame Relay Access Device
  • FROM Factory ROM
  • FRU Field Replaceable Unit
  • FS Field Separator
  • FS File Separator
  • FSB Front Side Bus
  • FSF Free Software Foundation
  • FSK Frequency Shift Keying
  • FT Fault Tolerant
  • FTAM File Transfer and Access Method
  • FTP File Transfer Protocol
  • FTP Foil Twisted Pair
  • FTTC Fibre To The Curb
  • FTTH Fibre To The Home
  • FTTP Fibre To The Building
  • FUP Funktionsplan
  • G

  • GAL Global Address List
  • GATF Graphic Arts Technical Foundation
  • GB GigaByte (1,073,741,824 bytes)
  • GCR Group Coded Recording
  • GDG Generation Data Group
  • GDS Global Directory Service
  • GDT Global Descriptor Table
  • GDTR Global Descriptor Table Register
  • GE Graphic Escape
  • GETVIS GET VIrtual Storage
  • GID Group ID
  • GIF Graphics Interchange Format
  • GIS Generalized Information System
  • GIX Global Internet Exchange
  • GKS Graphical Kernel System
  • GML Generalized Markup Language
  • GOSIP Government OSI Profile
  • GP General Protection
  • GPIB General-Purpose Interface Bus
  • GRS Global Resource Serialization
  • GS Group Separator
  • GTF Generalized Trace Facility
  • GUI Graphical User Interface
  • GUIP Graphical User Interface for Blind people
  • GUUG German Unix User Group
  • H

  • H&J Hyphenation and Justification
  • HA Home Address
  • HA Host Agent
  • HADA High Availability Disk Array
  • HCL Hue, Chroma, and Luminance
  • HDA Head-Disk Assembl
  • HDBV Host Data Base View
  • HDLC High Level Data Link Communications
  • HDSL High-bit rate Digital Subscriber Loop
  • HDTV High Definition TV
  • HE High End (system)
  • HGC Hercules Graphics Card
  • HIC Host Interface Computer
  • HLL High Level Language
  • HLS Hue-Lightness-Saturation
  • HMD Head-Mounted Display
  • HMMP HyperMedia Management Protocol
  • HMMS HyperMedia Management Schema
  • HPCL Hewlett-Packard Control Language
  • HPFS High Performance File System
  • HPGL Hewlett-Packard Graphical Language
  • HPR High Performance Routing
  • HR Horizontal Rule
  • HSB Hue-saturation-brightness
  • HSELAN High Speed ELAN
  • HSI Hue-Saturation-Intensity
  • HSLAN High Speed LAN
  • HSSI High Speed Serial Interface
  • HSV Hue-Saturation-Value
  • HT Horizontal Tab
  • HTML Hypertext Markup Language
  • HTTP Hypertext Transfer Protocol
  • Hz Hertz
  • I

  • I-Net Intranet
  • I/O Input/Output
  • I/O Input/Output
  • IA5 International Alphabet Five
  • IAB Internet Activities Board
  • IC Integrated Circuit
  • ICEM Integrated Computer Engineering and Manufacturing
  • ICMP Internet Control Message Protocol
  • ID Identifier
  • IDA Indirect Data Addressing
  • IDA Intelligent Drive Array
  • IDE Integrated Drive Electronics
  • IDEA International Data Encryption Algorithm
  • IDL Interfacce Definition Language
  • IDT Interrupt Descriptor Table
  • IEC InterExchange Carrier
  • IEEE Institute of Electrical and Electronic Engineers
  • IETF Internet Engineering Task Force
  • IF Interrupt Flag
  • IFF Interchange File Format
  • IFIP International Federation of Information Processing
  • IFS Interchange File Separator
  • IFS InterFrame Space
  • IGES Initial Graphics Exchange Specification
  • IGMP Internet Group Membership Protocol
  • IGS Interchange Group Separator
  • II Interactive Interface
  • IISP Interim Interswitch Signaling Protocol
  • IKT Informatione- und Kommunikationstechnik
  • ILC InterLanguage Communication
  • IML Initial Microcode Load
  • IMPL Initial Microprogram Load
  • IMR Interrupt Mask Registers
  • IMS Information Management System
  • IMS/VS Information Management System / Virtual Storage
  • INP Inhibit Presentation
  • INT INTerrupt
  • IOC ISDN Ordering Code
  • IOCP Input/Output Configuration Program
  • IOCS Input/Output Control System
  • IOGEN Input/Output device GENeration
  • IOPL Input/Output Privilege Level
  • IOS Input/Output Supervisor
  • IP Internet Protocol
  • IPL Initial Program Load
  • IPM InterPersonal Message
  • IPSE Integrated Project Support Environment
  • IPX Internet Packet Exchange
  • IR Index Return
  • IRC Internet Relay Chat
  • IRDS Information Resource Dictionary System
  • IRQ Interrupt ReQuest
  • IRS Interchange Recors Separator
  • IS Information System
  • IS Intermediate System
  • IS International Standard
  • ISA Industry Standard Architecture
  • ISAM Indexed Sequential Access Method
  • ISDN Integrated Services Digital Network
  • ISFMS Indexed Sequential File Management System
  • ISMF Interactive Storage Management Facility
  • ISO International Standardization Organisation
  • ISO IEC ISO International Electrotechnical Commitee
  • ISODE ISO Development Environment
  • ISP Internet Service Provider
  • ISPF Interactive System Produvtivity Facility
  • ISPF/PDF ISPF Program Development Facility
  • ISR Information Storage and Retrieval
  • ISR Intermediate Session Routing
  • ISSE Intel SIMD Sreaming Extension
  • ISV Independent Software Vendor
  • IT Indent Tab
  • ITB Intermediate Transmission Block
  • ITLD International Top-Level Domain
  • ITRC Information Technology Requirements Council
  • ITU International Comunication Union (ehem. CCITT)
  • ITV Interactive TeleVision
  • IUS Interchange Unit Separator
  • IWS Intelligent WorkStation
  • J

  • JCC Job Control Command
  • JCL Job Control Language
  • JCS Job Control Statement
  • JCT JES Control Table
  • JCT Journal Control Table
  • JECL Job Entry Control Language
  • JEIDA Japan Electronics Industry Development Association
  • JES Job Entry Subsystem
  • JPEG Joint Photographic Experts Group
  • K

  • K Kilobyte
  • KB KiloByte (1,024 Bytes)
  • KBPS KiloBits Per Second
  • kHz KiloHertz
  • KIP Kinetics Internet Protocol
  • KIPS Kilo Instructions per second
  • KL Key Length
  • KOPS Kilo Operations per second
  • KSDS Key Sequenced Data Set
  • KVA KiloVolt Ampere
  • L

  • L2F Layer 2 Forwarding
  • L2TP Layer 2 Tunneling Protocol
  • LAN Local Area Network
  • LAPS LAN Adapter Protocol Support Program
  • LBL Label
  • LCD Liquid Crystal Display
  • LCS Lotus Communication Server
  • LDAP Lightweight Directory Access Protocol
  • LDMF Librarian Disc Master File
  • LDS Linear Data Set
  • LDT Local Descriptor Table
  • LE Low End (system)
  • LEC LAN Emulation Client
  • LEC Local Exchange Carrier
  • LED Light Emitting Diode
  • LF Linefeed
  • LIC Line Interface Computer
  • LIFO Last In, First Out
  • LILO Last In, Last Out
  • LILO Linux Loader
  • LIM-EMS Lotus Intel Microsoft EMS
  • LIOCS Logical Input/Output Control System
  • LISP List Programming
  • LLC2 Logical Link Control Layer 2
  • LOC Lines Of Code
  • LOS Local Operator System
  • LPI Lines Per Inch
  • LRC Longitudinal Redundancy Checking
  • LRU Least Recently Used
  • LSD Least Significant Digit
  • LSI Large Scale Integration -> VLSI
  • LU Logical Unit
  • LUB Logical Unit Block
  • LUT Look Up Table
  • LVT Light Valve Technology
  • LW Line Work
  • LZ Lempel-Ziv
  • LZW Lempel-Ziv-Welch
  • M

  • MAC Media Access Control
  • MAN Metropolitan Area Network
  • MAP Maintenance Analysis Procedure
  • MAP Manufacturing Automation Protocol
  • MAPI Messaging Applications Programming Interface
  • MB MegaByte (1,048,576 bytes)
  • MBCS Multiple Byte Character Set
  • MBONE Multicast Backbone
  • MBPS MegaBits Per Second
  • MCA Micro Channel Architecture
  • MCBF Mean Cycles Between Failures
  • MCCOI Multimedia Communications Community of Interest
  • MCGA MultiColour Graphics Array
  • MCI Media Control Interface
  • MD Management Domain
  • MD5 Message Digest 5
  • MDA Monochrome Display Adapter
  • MEB Memory Expansion Board
  • MFA Modify Field Attribute
  • MFC Microsoft Foundation Classes
  • MFKS Multifunktionales Konferenzsystem
  • MFLOPS Million Floating-Point Operations Per Second
  • MFM Modified Frequency Modulation
  • MFV Multi File Volume
  • MFWS MultiFunction WorkStation
  • MGA Monochrome Graphic Adapter
  • MH Mobile Host
  • MHS Message Handling System
  • MI Multiple Inheritance
  • MIB Management Information Database
  • MICR Magnetic Ink Character Reader
  • MIDI Musical Instrument Digital Interface
  • MIME Multipurpose Internet Mail Extensions
  • MIPS Millions of Instructions Per Second
  • MISC Minimum Instruction Set Computer -> CISC, RISC
  • MLPPP MultiLink PPP
  • MMDF Multi-Channel Memorandum Distribution Facility
  • MMDS Multi-Megabit Data Services
  • MMFS Manufacturing Manage Format Standard
  • MMX Multi Media eXtensions
  • MNP Microcom Network Protocol
  • MODEM MOdulator/DEModulator
  • MOPS Mega Operations per second
  • MOTIS Message-Oriented Text Interchange Systems
  • MP Multiprocessing
  • MPC Multimedia PC
  • MPEG Motion Picture Experts Group
  • MPOA MultiProtocol Over Asynchronous transfer mode
  • MPSD MultiPath Storage Director
  • MPX multiplex
  • MS Message Store
  • MS-DOS Microsoft Disk Operating System
  • MSA Metropolitan Statistical Area
  • MSD Most Significant Digit
  • MSG Message
  • MSM MultiSession Monitor
  • MSW Machine Status Word
  • MTA Message Transfer Agent
  • MTBF MeanTime Between Failures
  • MTDA Mean Time Data Availability
  • MTS Message Transfer System
  • MUD Multi-User Dungeon
  • MULTICS MULTiplexed Information and Computing Service
  • MUMPS Massachusetts General Hospital Utility Multi-Programmings System
  • MUMPS Multi-User Multi-ProgrammingSystem
  • MVS Multiple Virtual System
  • MVS/ESA Multiple Virtual System / Extended System Architecture
  • MVS/XA Multiple Virtual System / Extended Architecture
  • MVSCP MVS Configuration Program
  • N

  • NAC Network Adapter Card
  • NAK Negative Acknowledgement
  • NAP Network Access Point
  • NAS Network Access Server
  • NAT Network Address Translation
  • NAU Network Addressable Unit
  • NBS National Bureau of Standards
  • NBS Numeric BackSpace
  • NC Numeric Control
  • NCCF Network Communication Control Facility
  • NCP Network Control Processor
  • NCP Network Control Program
  • NCP/VS Network Control Program/Virtual Storage
  • NDIS Network Driver Interface Specification
  • NetSP Network Security Program
  • NFNT New font numbering table
  • NFS Network File System
  • NHRP Next Hop Routing Protocol
  • NIC Network Interface Card
  • NIC Network Information Center
  • NIS Network Information Service
  • NIST National Institute for Standards and Technology
  • NJE Network Job Entry
  • NL New Line
  • NLQ Near Letter Quality
  • NLT Nucleus Load Table
  • NMI NonMaskable Interrupt
  • NNTP Network News Transport Protocol
  • NSA National Security Agency
  • NSC1 Network Systems Cypher One
  • NSP Numeric Space
  • NSS NATURAL Security-System
  • NT Network Termination
  • NTS/2 Network Transport Services/2
  • NTSC National Television System Committee
  • NUI Network User Identification
  • NUL Null
  • NUMA Non-Uniform Memory Access
  • NVOD Near Video On Demand
  • NVRAM NonVolatile Random Access Memory
  • NVS NonVolatile Storage
  • O

  • O/R Originator / Recipient
  • OC3 155 Mbit/s
  • OCR Optical Character Recognition
  • OCX OLE Control Extension
  • ODA Open Document Architecture
  • ODSI Open Directory Service Interfaces
  • OEM Original Equipment Manufacturer
  • OI Object Interface
  • OLE Object Linking and Embedding
  • OLTEP On-Line Test Executive Program
  • OLTP On-Line Transaction Processing
  • OMG Object Management Group
  • OMR Optical Mark Recognition
  • OO Objektorientierung
  • OOA Objektorientierte Analyse
  • OODBMS Object Oriented DBMS
  • OOP Objektorientierte Programmierung
  • OOPL Object Oriented Programming Language
  • OOPS Object Oriented Programming System
  • OP Operator Panel
  • OPI Open Prepress Interface
  • ORB Object Request Broker
  • OS Operating System
  • OS/2 Operating System/2
  • OSA Office Systems Architecture
  • OSA Open System Architecture
  • OSF Open Software Foundation
  • OSI Open Systems Interconnection
  • OSI/RM OSI Reference Model
  • OSNS Open Systems Network Support
  • OSPF Open Shortest Path First
  • OSTC Open System Testing Consortium
  • OTPROM One Time Programable ROM
  • OWL Object Windows Library
  • P

  • PABX Private Automatic Branch Exchange
  • PAD Packet Assembly Disassembly
  • PAL Phase Alternating Line
  • PAL Programmable Array Logic
  • PAM Partitioned Access Method
  • PAP Password Authentication Protocol
  • PB PetaByte (1,125,899,906,842,624 bytes)
  • PBX Private Branch Exchange
  • PC Personal Computer
  • PC Personal Computing
  • PC Program Control
  • PCB Printed Circuit Board
  • PCB Program Control Block
  • PCI Peripheral Component Interface
  • PCI Program Controlled Interuption
  • PCIL Private Core Image Library
  • PCL Printer Control Language
  • PCM Plug Compatible Manufacturers
  • PCMCIA Personal Computer Memory Card International Association
  • PCN Personal Communication Network
  • PCP Program Control Program
  • PCS Personal Communication Services
  • PCT Private Communication Technology
  • PCT Program Control Table
  • PD Public Domain
  • PDA Personal Digital Assistant
  • PDAD Proposed Draft Addendum
  • PDAU Physical Data Access Unit
  • PDF Program Development Facility
  • PDL Page Description Language
  • PDO Portable Distributed Objects
  • PDS Partitioned Data Set
  • PDS Premise Distribution System
  • PDS Processor Direct Slot
  • PDU Protocol Data Unit
  • PDX Printer Description Extension
  • PE Printer's error
  • PE Protection Enabled
  • PEARL Processor and Experiment Automation Realtime Language
  • PEM Privacy Enhanced Mail
  • PEP Partitioned Emulation Program
  • PER Program Event Recording
  • PERL Practical Extraction and Report language
  • PF Parity Flag
  • PFK Program Function Key(board)
  • PFM Printer Font Metric
  • PGA Professional graphics adapter
  • PGP Pretty Good Privacy
  • PIB Program Information Block
  • PID Process ID
  • PIFS Point InterFrame Space
  • PIM Personal Information Management
  • PIN Personal Identification Number
  • PIOCS Physical Input/Output Control System
  • PL Procedure Library
  • PL/1 Programming Language 1
  • PLI Programming Language 1
  • PLPA Pageable Link Pack Area
  • PLT Program List Table
  • PLU Primary Logical Unit
  • PMMU Paged memory management unit
  • PMS Pantone Matching System
  • PMS Project Management System
  • PMT Photomechanical Transfer (photostat)
  • PMT Photomultiplier Tube
  • PNNI Private Network-to-Network Interface
  • POC Program-Operator Communication
  • POP Point Of Presence
  • POP Post Office Protocol
  • POSIX Portable Operating System Interface for UNIX
  • POTS Plain Old Telephone System
  • POWER Priority Output Writer, Execution processors and input Readers
  • PP Presentation Position
  • PPD PostScript Printer Description
  • PPGA Plastic Pin Grid Array
  • PPM Pages Per Minute
  • PPP Point-to-Point Protocol
  • PPT Processing Program Table
  • PPTP Point-to-Point Tunneling Protocol
  • PPV Pay Per View
  • PRDMD Private Directory Management Domain
  • PRL Private Relocatable Library
  • PRMD Private Management Domain
  • PROM Programable Read Only Memory
  • PSB Program Specification Block
  • PSDN Packet Swiched Data Network
  • PSRAM Pseudo SRAM
  • PSSL Private Source Statement Library
  • PSTN Public Swiched Telephone Network
  • PSW Program Status Word
  • PTF Program Temporary Fix
  • PTR PoinTeR
  • PU Physical Unit
  • PUB Physical Unit Block
  • PVC Permanent Virtual Circuit
  • PVP Packet Video Processor
  • PWB Printed Wire Board
  • PWS Programmable WorkStation
  • Q

  • QAM Quadrature Amplitude Modulation
  • QBE Query By Example
  • QCIF Quater Common Intermediate Format
  • QIC Quarter-Inch Cartridge
  • QSAM Queued Sequential Access Method
  • QTAM Queued Teleprocessing Access Method
  • R

  • R0 Record zero
  • RACF Resource Access Control Facility
  • RAID Redundant Array of Inexpensive Disks
  • RAID Redundant Array of Independent Disks
  • RAM Random Access Memory
  • RARP Reverse Address Resolution Protocol
  • RBA Relative Byte Adresse
  • RC Robot Control
  • RCP Remote Communication Processor
  • RCS Revision Control System
  • RDA Remote Data Access
  • RDBMS Relational DataBase Management System
  • RDN Relative Distinguished Name
  • RES Restore
  • RF Resume Flag
  • RFC Request For Comments
  • RFF Required Form Feed
  • RFS Remote File System
  • RGB Red, Green, Blue
  • RGM Red, Green, Blue (Monitor)
  • RIFF Resource Interchange File Format
  • RIP Raster Image Processor
  • RIP Router Information Protocol
  • RISC Reduced Instruction Set Computer
  • RJE Remote Job Entry
  • RL Relocatable Library
  • RLD Relocation Dictionary
  • RLE Run Length Encoded file
  • RLL Run Length Limited
  • RMF Resource Management Facility
  • RNL Required New Line
  • ROM Read Only Memory
  • RPC Remote Procedure Call
  • RPG Report Program Generator
  • RPL Requestor's Privilege Level
  • RPL Research Programming Language
  • RPM Revolutions Per Minute
  • RPS Rotational Position Sensing
  • RPT Repeat
  • RRDS Relative Record Data Set
  • RRED Right Reading Emulsion Down
  • RREU Right Reading Emulsion Up
  • RS Record Separator
  • RSP Required Space
  • RSVP Resource Reservation Protocol
  • RTC Real Time Clock
  • RTCP Realtime Transport Control Protocol
  • RTF Rich Text Format
  • RTM/SF Realtime Monitor / Systems Facility
  • RTP Realtime Transport Protocol
  • RTSE Reliable Transfer Service Element
  • RWSI Remote Workstation Interface
  • S

  • S.W.I.F.T. Society for Worldwide Interbank Financial Telecommunication
  • S/STP Shielded STP
  • SA Set Attribute
  • SAA Storage Accounting Area
  • SAA System Application Architecture
  • SAM Sequential Access Method
  • SAP Service Access Point
  • SAP Service Advertising Protocol
  • SAR Segmentation And Reassembly
  • SBCS Single Byte Character Set
  • SBS Subscript
  • SC Storage Control
  • SCA Shared Control Array
  • SCCS Source Code Control System
  • SCDS Source Control Data Set
  • SCI Scalable Coherent Interconnect
  • SCODL Scanned Conversion Object Description Language
  • SCP Storage Control Program
  • SCP System Control Program
  • SCRAM Static Column Random Access Memory
  • SCSI Small Computer Systems Interface
  • SDH Synchronous Digital Hierarchy
  • SDK Software Development Kit
  • SDL System Directory List
  • SDLC Synchronous Data Link Control
  • SDRAM Synchronous DRAM
  • SDSF System Display and Search Facility
  • SE Software Entwicklung
  • SE System Engineer
  • SECC Single Edge Contact Connector
  • SECAM Sequential Couleur a'Memorie
  • SEL Select
  • SEPP Single Edge Processor Package
  • SET Software-Engineering-Technology
  • SF Sign Flag
  • SF Support Facility
  • SFA Salesforce Automation
  • SFBI Shared Frame Buffer Interconnect
  • SFE Start Field Extended
  • SFT System Fault Tolerance
  • SFTP Shielded Foil Twisted Pair
  • SGML Standard Generalized Markup Language
  • SHTTP Secure HTTP
  • SHY Syllable Hyphen
  • SI Shift In
  • SI Single Inheritance
  • SI Standard Interface
  • SIFS Short InterFrame Space
  • SIFT Stanford Information Filtering Tool
  • SIG Special Interest Group
  • SIM Service Information Message
  • SIMD Single Instruction Multiple Data
  • SIMM Single In-line Memory Module
  • SIRDS Single Image Random Dot Stereogram
  • SIT System Initialization Table
  • SL Source Statement Library
  • SLD Structured Logic Design
  • SLED Single Large Expensive Disk
  • SLIP Serial Line Internet Protocol
  • SLR Service Level Reporter
  • SLU Secondary Logical Unit
  • SM Set Mode
  • SMDS Switched Multimegabit Data Service
  • SMF System Management Facility
  • SML MVS Storage Management Library
  • SMLI Stateful MultiLayer Inspection
  • SMP Symetric MultiProcessing
  • SMP System Modification Program
  • SMS Storage Management Subsystem
  • SMTP Simple Mail Transfer Protocol
  • SNA System Network Architecture
  • SNADS SNA Distribution Services
  • SNMP Simple Network Management Protocol
  • SNOBOL String Oriented Symbolic Language
  • SNT Sign-On Table
  • SO Shift Out
  • SOD Service On Demand
  • SOH Start Of Heading
  • SOM System Object Model
  • SOS Start Of Significance
  • SP Space
  • SPA Software Publishers Association
  • SPARC Scalar Processor ARChitecture
  • SPDU Session Protocol Data Unit
  • SPM System Performance Monitor/2
  • SPOOL Simultaneous Peripheral Operations On Line
  • SPP Scalable Parallel Processing
  • SPS Superscript
  • SPX Sequenced Packet eXchange
  • SQL Structured Query Language
  • SQL/DS Structured Query Language / Data System
  • SRAM Static Random Access Memory
  • SRT System Recovery Table
  • SRU Shared Resource Unit
  • SS Single Sided
  • SS Stack Segment
  • SSCP System Service Control Point
  • SSID SubSystem IDentifier
  • SSL Secure Socket Layer
  • STM Synchronous Transfer Mode
  • STP Shielded Twisted Pair
  • STT Secure Transaction Technology
  • STX Start of Text
  • SUB Substitute
  • SV Storage Violation
  • SVA Shared Virtual Area
  • SVC Supervisor Call
  • SVC Switched Virtual Circuit
  • SVGA Super-VGA
  • SW Switch
  • SWOP Specifications for Web Offset Printing
  • SYN Synchronous Idle
  • SYSOP System Operator
  • T

  • T1 1.544 Mbit/s
  • T3 45 Mbit/s
  • TARGA Truevision Advanced Raster Graphics Adapter
  • TB TeraByte (1,099,511,627,776 bytes)
  • TC Terminal Control
  • TCA Task Control Area
  • TCAM Telecommunications Access Method
  • TCB Task Control Block
  • TCL Tool Command Language
  • TCM Thermal Conduction Module
  • TCO Triple Capacity Option
  • TCP Terminal Control Program
  • TCP/IP Transmission Control Protocol/Internet Protocol
  • TCT Terminal Control Table
  • TCTTE Terminal Control Table Terminal Entry
  • TCU Transmission Control Unit
  • TD Transient Data
  • TDIA Transient Data Input Area
  • TDM Time-Division Multiplexing
  • TDOA Transient Data Output Area
  • TDP Transient Data Program
  • TEO Technical Electronic Office
  • TF Trap Flag
  • TIC Technical Integrity Check
  • TIFF Tagged Image File Format
  • TIOA Terminal Input/Output Area
  • TLB Translation Lookaside Buffer
  • TLBL Tape Label
  • TMO Thermo-Magneto-Optic technology
  • TNEF Transport-Neutral Encapsulation Format
  • TOC Table Of Contents
  • TOP Technical Office Protocol
  • TPDU Transport Protocol Data Unit
  • TPF Transaction Processing Facility
  • TPI Tracks Per Inch
  • TPM Third-Party Maintenance
  • TPS Transactions Per Second
  • TRN Transparent
  • TS Telecommunication System
  • TS Temporary Storage
  • TSIOA Temporary Storage Input/Output Area
  • TSO Time Sharing Option
  • TSP Temporary Storage Program
  • TSR Terminate and Stay Resident
  • TTA Teletex Attachment (Teletexzusatz)
  • TTL Transistor Transistor Logic
  • TTR Track Record
  • TTY TeleTYpe
  • TWA Transaction Work Area
  • TWA Two-Way Alternate
  • TWS Two-Way Simultaneous
  • TX Telex
  • TXT Text
  • U

  • UA User Agent
  • UAE Unrecoverable Application error
  • UART Universal Asynchronous Receiver/Transmitter
  • UBR Undefined Bit Rate
  • UBS Unit Backspace
  • UCB Unit Control Block
  • UCR Undercolor removal
  • UCS Universal Character Set
  • UCSB Universal Character Set Buffer
  • UCW Unit Control Word
  • UDP User Datagram Protocol
  • UI User Interface
  • UID User ID
  • UMB Upper Memory Block
  • UNC Universal Naming Convention
  • UNC Universal Network Convention
  • UPC Universal Product Code
  • UPS Uninterruptible Power Supply
  • UPSI User Program Switch Indicator
  • UR Unit Record
  • URL Uniform Resource Locator
  • US Unit Separator
  • USART Universal Synchronous/Asynchronous Receiver/Transmitter
  • USENET USEr NETwork
  • USM UnSharp Masking
  • USRT Universal Synchronous Receiver/Transmitter
  • USV Unterbrechungsfreie StromVersorgung
  • UTP Unshielded Twisted Pair
  • UUCP Unix-to-Unix Copy Program
  • V

  • VAD Value Added Dealer
  • VAN Value Added Network
  • VAP Value Added Process
  • VAR Value Added Reseller
  • VAST Virtual Archive Storage Technology
  • VB Visual Basic
  • VBA Visual Basic for Applications
  • VBR Variable Bit Rate
  • VBN Vermitteltes Breitbandnetz
  • VC Virtual Circuit
  • VC-SDRAM Virtual Channel SDRAM
  • VCC Virtual Circuit Connection
  • VCI Virtual Circuit Identifier
  • VCNA Vtam Communication Network Application
  • VCPI Virtual Control Program Interface
  • VDAC Video Digital Analog Converter
  • VDI Video Display Interface
  • VDT Video Display Terminal
  • VDU Visual Display Unit
  • VERONICA Very Easy Rodent-Oriented Netwide Index to Computerized Archives
  • VGA Video Graphics Array
  • VGC Video Graphics Controller
  • VGM Video Graphics Monitor
  • VHDSL Very High-bit rate Digital Subscriber Loop
  • VHLL Very High-Level Language
  • VHS Video Home System
  • VIO Video Input/Output
  • VIO Virtual Input/Output
  • VIPA Virtual IP Addressing
  • VLAN Virtual LAN
  • VLSI Very Large Scale Integration
  • VM Virtual Machine
  • VM/SP Virtual Machine / System Product
  • VMMAP VM Monitor Analysis Program
  • VMOS Vertical MOS
  • VMPPF VM Performance Planning Facility
  • VMPRF VM Performance Reporting Facility
  • VMS Virtual Management System
  • VOD Video On Demand
  • VPD Vital Product Data
  • VPDN Virtual Private Data Network
  • VPI Virtual Path Identifier
  • VPN Virtual Private Network
  • VR Virtual Reality
  • VRAM Video RAM
  • VRML Virtual Reality Modeling Language
  • VRC Vertical Redundancy Checking
  • VS Virtual Storage
  • VSAM Virtual Storage Access Method
  • VSAT Very Small Aperture Terminal
  • VSM Virtual Storage Management
  • VSN Volume Serial Number
  • VT Vertical Tab
  • VTAM Virtual Telecommunications Access Method
  • VTOC Volume Table of Contents
  • VTP Virtual Terminal Protocol
  • VTP Virtual Terminal Program
  • VTX VideoTeXt
  • VVDS VSAM Volume Data Set
  • W

  • W3 World Wide Web
  • W4WG Windows for Workgroups
  • WABI Windows Application Binary Interface
  • WAIS Wide Area Information Service
  • WAN Wide Area Network
  • WATM Wireless ATM
  • WATS Wide Area Telecommunications Service
  • WHAT Wireless Hybrid Asynchronous Time-bounded
  • WIMP Windows, Icons, Mice and Pointers
  • WINS Windows Internet Name Service
  • WMAC Wireless Media Access Control
  • WMF Windows metafile
  • WORM Write Once, Read Many times
  • WOSA Windows Open Services/Systems Architecture
  • WRED Wrong Reading Emulsion Down
  • WREU Wrong Reading Emulsion Up
  • WS WorkStation
  • WTO Write To Operator
  • WUS Word Underscore
  • WWW World Wide Web
  • WXTRN Weak External Reference
  • WYSIWYG What You See Is What You Get
  • X

  • XA EXtended Architecture
  • XIP Execute In Place
  • XLT Transaction List Table
  • XMS Extended Memory Specification
  • XT eXtended Technology
  • Y

  • Y2K Year 2000
  • YIQ (color components in NTSC color space)
  • YUV (color components in SECAM and PAL color spaces)
  • Z

  • ZBR Zero Bug Release
  • ZD Zero Defects
  • ZF Zero Flag





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