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
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
ADSL Asymetric Digital Subscriber Line
AEA Activity End Acknowledge
AEI Application Entity Invocation
AF Application Framework
AFP Advanced Function Printing
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
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
nteractive
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 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
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
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
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
ing 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)
ty 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
PPM Pages Per Minute
PPP Point-to-Point Protocol
PPS Produktionsplanung und -steuerung
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
age 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
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
