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Home / Computing & IT / IT Terminology

Computing & IT >> IT Terminology Abbreviations

Look through 5000 acronyms and abbreviations related to IT Terminology:

SOX — Sarbanes-Oxley
KML — Keyhole Markup Language
OSS — Open Source Software
FM-200 — Firemaster / Fire Master 200
LCR — LIFETIME CLINICAL RECORD
LAN — Local Area Network
HIPAA — Health Insurance Portability and Accountability Act of 1996
RFID — Radio Frequency Identification
FTP — File Transfer Protocol
DYLD — dynamic link editor
L3F — Layer 3 Forwarding
YMMV — Your Mileage May Vary
ANOVA — Analysis of Variance (statistics)
CUG — Closed User Group
MAN — Metropolitan Area Network
VDU — Visual Display Unit
WWW — World Wide Web
ODBO — OLE DB for OLAP
MBR — Master Boot Record
MOODLE — Modular Object-Oriented Dynamic Learning Environment
ROM — Read-Only Memory
A11Y — accessibility
IRC — Internet Relay Chat
CSMA/CA — Carrier Sense Multiple Access/Collision Avoidance
IT — Information Technology
0-DAY — zero Dimension
LIFO — Last In, First Out
DBMS — Database Management System
RADCAB — Relevancy Appropriateness Detail Currency Authority Bias
EOF — End Of File
SVPCO — Small Value Payments Co.
ARPANET — Advanced Research Projects Agency Network (early internet)
WML — Wireless Markup Language
CPE — Customer Premises Equipment
SYN — Synchronous
AD — Administrative Domain
ISO — International Organization for Standardization
BRAS — Broadband Remote Access Server
MSG — Message
LASER — Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
IPL — Initial Program Load
EDI — Electronic Data Interchange
SAAS — Software as a Service
CD — Compact Disc
ACE — Access Control Entry
DDOS — Distributed Denial of Service
NFS — Network File System
MB — Megabyte
FET — Field Effect Transistor
ANSI — American National Standards Institute, Inc.

AUP — Acceptable Use Policy
Y2K — Year 2000
MMS — Multimedia Messaging Service
CPU — Central Processing Unit
ABI — Application Binary Interface
J-CODE — Japan code
YYYY-MM-DD — Year Year Year Year - Month Month - Day Day
CS — Computer Science
DAC — Discretionary Access Control
PDH — Plesiochronous Digital Hierarchy
DSA — Digital Signature Algorithm
ISP — Internet Service Provider
TR — Technical Report
DDL — Data Definition Language
BTW — By The Way
AAC — Advanced Audio Coding
RPG — Report Program Generator
AES — Advanced Encryption Standard
SPL — Sound Pressure Level
U2F — Undetectable and Untraceable Fraud
PDA — Personal Digital Assistant
GPRS — General Packet Radio Service
MFKS — Multifunktionales Konferenzsystem
GSM — Global System for Mobile Communications
FINRA — Financial Industry Regulatory Authority
OEM — Original Equipment Manufacturer (usually in reference to car parts)
HTTP — Hypertext Transfer Protocol
AMP — Ampere
LCD — Liquid Crystal Display
SAN — Storage Area Network
FISMA — Federal Information Security Management Act
SCSI — Small Computer System Interface
ABR — Available Bit Rate
DFS — Distributed File System
WAN — Wide Area Network
CU — Control Unit
RNC — Radio Network Controller
AC — Access Control
ACD — Automatic Call Distributor
NIC — Network Interface Card
SMTP — Simple Mail Transfer Protocol
CGI — Common Gateway Interface
WDM — Wavelength Division Multiplexing (fiber optics)
EOM — End Of Message
NOS — Network Operating System
KPI — Key Performance Indicator
CBC — cipher block chaining
R&D — Research & Development
CMOS — Complementary Metal-Oxide Semiconductor
VR — Virtual Reality

RF — Radio Frequency
DSU — Data Service Unit
GIS — Geographic Information System
IP — Internet Protocol
BCM — Business Continuity Management
RPC — Remote Procedure Call
PDP — Policy Decision Point
RFP — Request For Proposal
TCB — Trusted Computing Base
GD&T — Geometric Dimensioning and Tolerancing
IM — Instant Message
ERP — Emergency Response Plan
FLOGI — Fabric Login
LPI — Lines Per Inch
DOCOMO — Do Communication over the Mobile network
WEP — Wired Equivalent Privacy
IPS — Intrusion Prevention System
SN — Sequence Number
NDM — Network Data Mover
RFC — Request For Comment
FSM — Finite State Machine
SIG — Special Interest Group
TCP — Transmission Control Protocol
ADK — Additional Decryption Key
FAR — False Acceptance Rate
CIO — Chief Information Officer
DIT — Directory Information Tree
MRI — Magnetic Resonance Imaging
FX — Foreign Exchange
WAS — Web Application Server
UGC — User Generated Content
AMP — Amplifier
IFRS — International Financial Reporting Standard
MS — Message Store
GRE — Generic Routing Encapsulation
RDP — Remote Desktop Protocol
PMI — Project Management Institute
NIH — Not Invented Here
LCP — Link Control Protocol
EF — Expedited Forwarding
ATA — Advanced Technology Attachment
MSN — Microsoft Network
ATM — Asynchronous Transfer Mode
MSA — Metropolitan Statistical Area
AD — Active Directory
B — Byte
YACC — Yet Another Compiler-Compiler
XSL — eXtensible Stylesheet Language
B CHANNEL — Bearer Channel
NPI — National Provider Identifier

MIC — Message Integrity Check
I/O — Input/Output
NM — Nanometer
SLA — Service Level Agreement
MOS — Mean Opinion Score
IEE — Institution of Electrical Engineers
R_A_TOV — resource allocation timeout value
YP — Yellow Pages
GTS — Generic Traffic Shaping
OUI — Organizationally Unique Identifier
POC — Proof Of Concept
IOS — Internetwork Operating System
UDP — User Datagram Protocol (FDDI related)
MFC — Microsoft Foundation Class
PLD — Programmable Logic Device
HARQ — Hybrid Automatic-Repeat-Request
VAN — Value Added Network
SLIP — Serial Line Interface Protocol
SKU — Stock Keeping Unit
FC — Fibre Channel
PLMN — Public Land Mobile Network
LLC — Logical Link Control
DTE — Data Terminal Equipment
PDL — Page Description Language
CDR — Clinical Data Repository
LMI — Local Management Interface
LED — Light-Emitting Diode
AF — Audio Frequency
B-HAVW — Behavioral Heuristic Analyzer in Virtual Environments
EGA — Enhanced Graphics Adapter
IS — Intermediate System
SMS — Short Message Service
IC — Integrated Circuit
BW — Bandwidth
ARPA — Advanced Research Projects Agency (made early internet)
PWR — Power
RW — Read-Write
DAMA — Demand Assigned Multiple Access
H-MENU — Hierarchical menu
ECC — Elliptic Curve Cryptography
M — Meter
DLC — Digital Loop Carrier
CC — Carbon Copy
QOS — Quality of Service
DES — Data Encryption Standard
VM — Virtual Machine
TTL — Transistor-Transistor Logic
IAP — Internet Access Provider
E_D_TOV — error detect timeout value
BECN — Backward Explicit Congestion Notification

SAM — Software Asset Management
NSP — Network Service Provider
MAC — Message Authentication Code
MUA — Mail User Agent (Internet email)
TLB — Translation Lookaside Buffer
RS — Runescape
CMS — Color Management System
D CHANNEL — delta channel
CAPTCHA — Completely Automated Public Turing test to tell Computers and Humans Apart
DHCP — Dynamic Host Configuration Protocol
BCC — Blind Carbon Copy
LSR — Local Service Request
AM — Amplitude Modulation
SGML — Standard Generalized Markup Language
DEC — Digital Equipment Corporation
PDF — Portable Document Format (created by Adobe Acrobat)
ALSA — Advanced Linux Sound Architecture
NES — Nintendo Entertainment System
USB — Universal Serial Bus
NLB — Network Load Balancing
EAP — Extensible Authentication Protocol
EBCDIC — Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
UHF — Ultra High Frequency (300-3000 MHz; 1m-10cm)
D-COMMERCE — digital commerce
DBA — Database Administrator
ADP — Accidental Damage Protection
DPC — Destination Point Code
MDA — Monochrome Display Adapter
CRL — Certificate Revocation List
FFT — Fast Fourier Transform
EMF — Electromotive Force
ICT — Information and Communication Technology
CIS — Clinical Information System
CTRL — Control
MTA — Mail Transfer Agent
WAI-ARIA — Web Accessibility Initiative - Accessible Rich Internet Applications
PMR — Private Mobile Radio
DEA — Data Encryption Algorithm
EDS — Electronic Data Systems Corporation
VNC — Virtual Network Computing
AR — Access Rate
AAL — ATM Adaptation Layer
IOT — Internet of Things
FXO — Foreign Exchange Office
HLA — High Level Architecture
MD — Management Domain
MARS — Multicast Address Resolution Server
DOA — dead on arrival
BI — Business Intelligence
RLL — Run Length Limited

ECN — Explicit Congestion Notification
AA — Anti-Aliasing
ICMP — Internet Control Message Protocol
IME — Input Method Editor
LVM — Logical Volume Manager
HSM — Hierarchical Storage Management
SID — Security Identifier
ZIP — Zone Information Protocol
ACL — Access Control List
S.W.I.F.T. — Society for Worldwide Interbank Financial Telecommunication
HDLC — High-Level Data Link Control
ASP — Active Server Page
PVC — Polyvinyl Chloride
C-GREX — Chaos Game Representation Explorer
PAP — Printer Access Protocol
AGP — Accelerated Graphics Port
MIMO — Multiple Input, Multiple Output
VB — Visual Basic
L10N — Localization
CEF — Cisco Express Forwarding
MSL — Mean Sea Level
TPF — Transaction Processing Facility
RCS — Revision Control System
RS — Recommended Standard
DLR — Design Layout Record
COBOL — COmmon Business Orientated Language. Acronym-derived name for the early computer language. (Ack RL) See also BASIC.
ARU — Audio Response Unit
GPO — Group Policy Object
AOA — Angle Of Arrival
GPS — Global Positioning System (ex-NAVSTAR)
WOW — World of Warcraft
ICE — In-Circuit Emulator
RAD — Rapid Application Development
CERT — Computer Emergency Response Team
DFM — Design for Manufacturability
OMG — Object Management Group
DOP — Dilution Of Precision
QBDL — Query Based Distribution List
LOS — Line Of Sight
AGC — Automatic Gain Control
VHF — Very High Frequency
UC&C — Unified Communications & Collaboration
SIL — Safety Integrity Level
AJP — Apache JServ Protocol
LEO — Low Earth Orbit (satellite communications)
PNG — Portable Network Graphics (graphic file standard/extension)
MTBF — Mean Time Before Failure
VOD — Video On Demand
PEP — Policy Enforcement Point
OTN — Optical Transport Network

SIEM — Security Information and Event Management
APR — Apache Portable Runtime
AI — Artificial Intellegence
OH — Overhead
RJ45 — Registered Jack - 45
GUIP — Graphical User Interface for Blind people
API — Application Programming Interface
BRA — Basic Rate Access
PCB — printed circuit board
UA — User Agent
AMTA — American Mobile Telecommunications Association
IPX — Internetwork Packet Exchange
TLS — Transport Layer Security
R-UIM — Removable-User Identity Module
RTS — Request To Send
FQDN — Fully Qualified Domain Name
CIM — Common Information Model
AT — Advanced Technology
USART — Universal Synchronous/Asynchronous Receiver/Transmitter
AV — Anti-Virus
NSA — National Security Agency
ASCII — American National Standard Code for Information Interchange
BSD — Berkeley Software Distribution
LOC — Lines Of Code
CARE — Customer Account Record Exchange
DNS — Domain Name System
BT — British Telecommunications
ADT — Abstract Data Type
MS — Millisecond
3GPP — 3rd Generation Partnership Project
NL — New Line
KDSI — thousand (K) Delivered Source Instructions
LFS — Linux from Scratch
RIP — Routing Information Protocol
PSW — Program Status Word
IDE — Integrated Drive Electronics
CFM — Cubic Feet per Minute
V2P — Virtual to Physical
ADC — Automated Data Collection
V H — Vertical and horizontal grid points
UAE — Unrecoverable Application Error
ACM — Association for Computing Machinery
ANS — Area Navigation System
FE — Fast Ethernet
WML — Website Meta Language
DOM — Document Object Model
DIA — Dedicated Internet Access
PPM — parts per million
VLL — Virtual Leased Line
DB — Database

ADO — ActiveX Data Objects (Microsoft)
DA — Destination Address
BT — BlueTooth
TMS — Transportation Management System
STP — Spanning Tree Protocol
CATV — Community Antenna Television
APC — American Power Conversion
ECB — Event Control Block
AU — Audio Unit
1RU — 1 Rack Unit
MODEM — Modulator-Demodulator
IETF — Internet Engineering Task Force
SCTP — Stream Control Transmission Protocol
CPM — Corporate Performance Management
OTP — One Time Password
BOD — Business Object Document
GPL — General Public License
TB — Terabyte
BSSID — Basic Service Set Identifier
CVS — Concurrent Versions System
RTP — Real-Time Transport Protocol
TCL — Tool Command Language
CAN — Campus Area Network
BP — Base Pointer
SWIM — System Wide Information Management
SWAT — Samba Web Administration Tool
GUI — Graphical User Interface (goo-ey)
FR — Frame Relay
NIC — Network Information Center
DCE — Distributed Computing Environment
IC — I See
IE — Internet Explorer
ALU — Arithmetic Logic Unit
MDM — Master Data Management
USL — UNIX System Laboratories
PSP — Personal Software Process
BCD — Binary-Coded Decimal
URI — Uniform Resource Identifier
PCI — Peripheral Component Interconnect
AS — Autonomous System
MMR — Modified Modified Read
NTFS — New Technology File System
DVD — Digital Versatile Disc
G — Giga-
RACON — Radar Beacon
BBS — Bulletin Board System
NIS — Network Information Service
SFP — Small Form-factor Pluggable
ACK — ACKnowledgment
CSMA/CD — Carrier Sense Multiple Access with Collision Detection

CIC — Circuit Identification Code
GTT — Global Title Translation
AMI — Advanced Metering Infrastructure
SPF — Sender Policy Framework
MCU — Multipoint Control Unit
RPG — Role Playing Game
ISA — Industry Standard Architecture
BO — Business Object
ACE — Adobe Certified Expert
D-CHANNE — delta channel
TOP — Technical Office Protocol
S/STP — Shielded STP
ES — Errored Second
ALGOL — Algorithmic Language
UAUTH — user authentication
RP-TNC — Reverse Polarity Threaded Neill-Concelman
RDBMS — Relational Database Management System
CCS — Coded Character Set
OSS — Online Service System
TE — Traffic Engineering
EMR — Electronic Medical Record
B — Bit
MHZ — Megahertz (Megacycles Per Second)
AOE — ATA Over Ethernet
HSDPA — High-Speed Downlink Packet Access
IVR — Interactive Voice Response (telephone technology)
EA — Enterprise Agreement
PLOGI — port login
CTO — Chief Technology Officer
DCI — Display Control Interface
PSP — PlayStation Portable
SKMS — Service Knowledge Management System
HSD — High Speed Data
BOM — Bill of Material
IMC — Internet Mail Consortium
FA — Foreign Agent
RFS — Ready For Service
SRAM — Static Random Access Memory (ess-ram)
TOS — Type Of Service
AIR — Additive Increase Rate
MSD — Most Significant Digit
COMSAT — Communications Satellite Corporation
GIGO — Garbage In Garbage Out (computing)
PDN — Public Data Network
NBSP — Non-Breaking Space
O.K.I. — Open Knowledge Initiative
RIM — Reference Information Model
AFM — Atomic Force Microscope
CIA — Confidentiality, Integrity and Availability
HMA — High Memory Area

CDS — Correlated Double Sampling
DCC — Digital Command Control
EPO — Emergency Power Off
ZDBOP — Ziff-Davis Benchmark Operation
LDT — Local Descriptor Table
T-COMMERCE — television commerce
ICS — Internet Connection Sharing
FXS — Foreign Exchange Station
HAN — Home Area Network
ASR — Automatic Speech Recognition
EMS — Expanded Memory Specification
GWT — Google Web Toolkit
COS — Class Of Service
HSM — Hardware Security Module
E-PAPER — Electronic paper
DAP — Directory Access Protocol
WAB — Windows Address Book
CPP — C Plus Plus, C (programming language)
GTM — Global Traffic Manager
ACK — Acknowledge (telecommunications; Cf. NAK)
PPD — Postscript Printer Description
SPC — Stored Program Control
BOBJ — Business Objects SA
GMSK — Gaussian Minimum Shift Keying
CF — Compact Flash
PAN — Personal Area Network
BPA — Business Process Automation
CBDS — Connectionless Broadband Data Service
CSC — Card Security Code
GP — General Protection
TFT — Thin Film Transistor
DPI — Deep Packet Inspection
LF — Line Feed
FSF — Free Software Foundation
HPC — High Performance Computing
YA- — Yet Another
LGPL — Lesser General Public License
SLI — Scalable Link Interface
CBT — Computer Based Training
SB — Sound Blaster
OU — Organizational Unit
TAR — Tape Archive
VSM — Value Stream Mapping
PD — Public Domain
H/S LAN — High-Speed Local-Area Network
LLDP-MED — Link Layer Discovery Protocol-Media Endpoint Discovery
APM — Advanced Power Management
SM — Set Mode
LPC — Linear Predictive Coding
TCB — Task Control Block

AM — Access Method
SPI — Stateful Packet Inspection
GDS — Global Directory Service
I-DEAS — Integrated-Design Engineering Analysis Software
DTR — Data Terminal Ready
AARP — Appletalk Address Resolution Protocol
DMZ — Demilitarized Zone
W3C — World Wide Web Consortium
HADR — High Availability Disaster Recovery
AMD — Active Matrix Display
ASN — Autonomous System Number
ETS — European Telecommunication Standard
ATO — Assemble To Order
AIN — Advanced Intelligent Network
NAC — Network Access Control
DAL — Dedicated Access Line
EX — Exchange
RTF — Rich Text Format
DDS — Digital Data Service
FCP — Fibre Channel Protocol
OOB — Out-Of-Band
LU — Logical Unit
PAT — Port Address Translation
BC4J — Business Components for Java
NAS — Network Access Server
WCF — Windows Communication Foundation
KVA — kilo Volt Ampere
K — Kilo-
EDC — Electronic Data Capture
DPL — Descriptor Privilege Level
UCM — Unified Change Management
GIMP — GNU Image Manipulation Program
COD — Call of Duty
QA — Center for Quality Assurance in International Education
SMS — Storage Management Subsystem
MVS — Multiple Virtual Storage
AIS — Alarm Indication Signal
RTSP — Real Time Streaming Protocol
ISC — Internet Software Consortium
RAC — Real Application Cluster
MPL — Mozilla Public License
SMS — Security Management System
DOMAIN — Distributed Operating Multi-Access Interactive Network
ASN — Abstract Syntax Notation
CDI — Customer Data Integration
VC — Virtual Channel
CAT — Computer-Assisted Translation
BOC — Bell Operating Company
CTS — Clear To Send
CRT — Cathode Ray Tube (type of TV)

PIO — Programmed Input/Output
RFU — Ready For Use
QBDG — Query Based Distribution Group
FDX — Full Duplex
CFA — Color Filter Array
HCL — Hardware Compatibility List
OSPF — Open Shortest Path First (ATM)
DL — Double-Layer
RC — Release Candidate
SYSOP — System Operator
E-DISCOVERY — Electronic discovery
OID — Object Identifier
HR/DSSS — High Rate/Direct Sequence Spread Spectrum Physical Layer
BMS — Basic Mapping Support
EMF — Electromagnetic Field
CVSD — Continuous Variable Slope Delta (modulation)
NIS — Norton Internet Security
SIM — Security Information Management
CEM — Customer Experience Management
NRO — Number Resource Organization
CCTV — Closed-circuit television
LDR — Light Dependent Resistor
ARP — Address Resolution Protocol (ATM)
TF — Trap Flag
CO — Central Office
JNI — Java Native Interface
CKO — Chief Knowledge Officer
IDE — Integrated Development Environment
ER — Entity Relationship
SA — Source Address
LPF — League for Programming Freedom
TE — Terminal Equipment
DAO — Disk-At-Once
PVR — Personal Video Recorder
AFK — Away From Keyboard (Internet Chat Abbreviation)
F/STP — Foil STP
EARL — Enhanced Address Recognition Logic
HACTIVISM — from "hack" and "activism"
BCE — Bell Canada Enterprises
ISR — Interrupt Service Routine
FDDI — Fiber Distributed Data Interface
DSO — Data Source Object
SLM — Service Level Management
RSL — Received Signal Level
BER — Bit-Error Rate
PGP — Pretty Good Privacy (encryption)
NCQ — Native Command Queuing
BERT — Bit Error Rate Tester (telecommunication)
CD — current density
PLA — Programmable Logic Array

TCM — Thermal Conduction Module
MCA — Micro Channel Architecture
ESRB — Entertainment Software Rating Board
AMI — Alternate Mark Inversion
OCR — Optical Character Recognition
ADL — Advanced Distributed Learning
KB — Kilobit
ESE — Extensible Storage Engine
EUC — Extended Unix Code
BAR FILE — broker archive file
AMT — Active Management Technology
AR — Augmented Reality
CIR — Committed Information Rate (Frame Relay)
BIC — Bank Identifier Code
DOD — United States Department of Defense
ADC — Analog-Digital Converter
DDD — Data Display Debugger
ARIA — Accessible Rich Internet Applications
SIM — Subscriber Identity Module
M-BUSINESS — Mobile Business
RAM — random-access memory
CN — Corporate Network
XDM — X Display Manager
CAV — Constant Angular Velocity
UAT — User Acceptance Test
MSS — Managed Security Services
GB — Gigabyte
GDP — Gateway Discovery Protocol
BYOD — Bring Your Own Device
TCU — Transmission Control Unit
VOP — Velocity of Propagation
MEB — Memory Expansion Board
PDC — Personal Digital Cellular
BIT — Binary Digit (either 0 Or 1)
XMPP — Extensible Messaging and Presence Protocol
URL — Universal Resource Locator
CDMA — Code Division Multiple Access (voice/data transmission)
M-COMMERCE — mobile commerce;
AEC — Architecture, Engineering, Construction
BTM — Benchmark Timing Methodology
ISDN — Integrated Services Digital Network
MOH — Music On Hold
AOR — Address of Record
ARM — Advanced RISC Machines Ltd
3M — Minnesota Mining And Manufacturing Company
DRAM — Dynamic Random Access Memory (dee-ram) (computing)
DBS — Direct Broadcast Satellite
XPS — XML Paper Specification
CISC — Complex Instruction Set Computer
RTK — Real-Time Kinematic

ASML — Advanced Semiconductor Materials Lithography
ASLR — Address Space Layout Randomization
TP — Transport Protocol
LPC — Local Procedure Call
IDR — Intelligent Disaster Recovery
I²C — Inter-Integrated Circuit
ICP — Internet Content Provider
ES-IS — End System to Intermediate System protocol
BSS — Business Support System
CCTA — Central Computer and Telecommunications Agency
BPA — Business Process Analysis
DCS — Digital Cross-connect System
AIO — All in One
BOD — Bandwidth on Demand
DTS — Digital Theater Systems, Inc.
RAD — Radiation Absorbed Dose
ECO — Engineering Change Order
EPABX — Electronic Private Automatic Branch Exchange
IR — Infrared
LV — Logical Volume
OSI — Open Systems Interconnection (iso Standard)
PF KEY — Program Function Key
SR — Speech Recognition
MTS — Microsoft Transaction Server
PIN — Personal Identification Number
SAIC — Science Applications International Corporation
COOP — Continuity of Operations
CA — Computer Associates International Inc.
WTLS — Wireless Transport Layer Security
CIS — CompuServe Information Service
P-X — Pentium - (numbers)
NPL — Netscape Public License
SBC — Single-Board Computer
IDC — Internet Data Center
PCT — Private Communication Technology
CNA — Converged Network Adapter
MPI — Master Patient Index
RED — Random Early Detection
RIA — Rich Internet Application
FAQ — Frequently Asked Questions (sometimes Pronounced Fak)
SEM — Strategic Enterprise Management
DXDIAG — directx diagnostics
BSP — Board Support Package
WPF — Windows Presentation Foundation
FORTRAN — FORmula TRANslation (a computer language)
NAV — Norton Anti-Virus
CAS — Computer Algebra System
NETBIOS — Network Basic Input/Output System
CSE — Custom Search Engine
NIMH — Nickel Metal Hydride (Ni Is The Chemical Symbol For Nickel)

PA-QSA — Payment Application Qualified Security Assessors
CAP — Carrierless Amplitude/Phase Modulation
AIT — Advanced Intelligent Tape
FIR — Finite Impulse Response
ICF — Internet Connection Firewall
SOA — Start of Authority (domain name system record)
CAD — Computer Aided Designer
NLS — National Language Support
SPI — Serial Peripheral Interface
IM — Identity Management
RTM — Read the manual (meaning «don’t ask stupid questions before read existing information»)
IKE — Internet Key Exchange
EIRP — Effective Isotropic Radiated Power
IRP — I/O Request Packet
AMR — Audio Modem Riser
HD — Half-Duplex
EDM — Engineering Data Management
SD — Secure Digital
PDC — Primary Domain Controller
SOM — System Object Model
ASIC — application-specific integration circuit
NEC — National Electric Code
FT — Fault Tolerant
DLC — Data Link Control
TAO — Track-At-Once
MTSO — Mobile Telephone Switching Office
CFA — Circuit Facility Assignment
TEC — Tivoli Enterprise Console
NTF — No Trouble Found
TFS — Team Foundation Server
WD — Western Digital
LLU — Local Loop Unbundling
FE — Field Engineer
EDM — Electronic Document Management
ICE — Information and Content Exchange
EOL — End Of Life
CCIE — Cisco Certified Internetwork Expert
PERT — Program Evaluation and Review Technique
MARS — Monitoring, Analysis and Response System
RPL — Remote Program Load
FC-AL — Fibre Channel-Arbitrated Loop
AUV — Autonomous Underwater Vehicle
SNMP — Simple Network Management Protocol (ATM)
PS — Picosecond
QOE — Quality of Experience
EGL — Enterprise Generation Language
IDM — Internet Download Manager
ARA — Apple Remote Access
WOW — World Organization of Webmasters
OPML — Outline Processor Markup Language

MSS — Maximum Segment Size (TCP/IP)
INTEL — Integrated Electronics
BPS — bits per second
ADN — Advanced Digital Network
OS — Operating System
OLAP — Online Analytical Processing
SPX — Sequenced Packet Exchange
SDP — Service Delivery Platform
RDL — Report Definition Language
ATP — AppleTalk Transaction Protocol
ZEROCONF — Zero Configuration Networking
LVOL — logical volume
ENX — European Network Exchange
LOB — Large Object
ISM — Industrial, Scientific and Medical
PSTN — Public Switched Telephone Network
CA — Collision Avoidance
KISS — Keep It Simple Stupid
ACI — Access Control Information
WIC — WAN Interface Card
DCAP — Data (Link Switching) Client Access Protocol
VHD — Virtual Hard Drive
NMS — Network Monitoring System
DSM-CC — Digital Storage Media Command and Control
WYSIWYG — What You See Is What You Get (pronounced Wizzy-wig. See Entry For Derived Acronyms)
VPN — Virtual Private Network (ATM)
IGS — IBM Global Services
MAPP — Microsoft Active Protections Program
ACR — Allowed Cell Rate
CIX — Commercial Internet Exchange
CIS — Card Information Structure
CDF — Channel Definition Format
L1/L2 CACHE — level-1/2 cache
FRS — File Replication Service
RTO — Recovery Time Objective
NIM — Network Interface Module
NAI — Network Associates, Inc.
CARP — Common Address Redundancy Protocol
HIP — Host Identity Protocol
VLF — Very Low Frequency
UC2 — Unified Communications & Collaboration
FPM — Fast Page Mode (DRAM)
ES — End System
ATG — Art Technology Group, Inc
FCS — Fibre Channel Standard
DSR — Dynamic Source Routing
RCP — Remote Copy Protocol
UV — Ultraviolet (Light)
MTTR — Mean Time To Repair
EUTELSAT — European Telecommunications Satellite Organization

GMRS — General Mobile Radio Service
DCCP — Datagram Congestion Control Protocol
AMH — Automated Material Handling
SWT — Standard Widget Toolkit
ALT — Alternative Lengthening of Telomeres
OP — Operator Panel
MHS — Message Handling System (electronic)
EDIFACT — Electronic Data Interchange for Administration Commerce and Transport
AAT — Average Access Time
NPA — Numbering Plan Area
EGNOS — European Geostationary Navigation Overlay Service
DTP — Desktop Publishing
OWL — Object Windows Library
USB — Upper Side Band
DSSS — Direct Sequence Spread Spectrum
XFR — Transfer
MDM — Meter Data Management
MXF — Material eXchange Format
GOS — Grade Of Service
LVD — Low Voltage Differential
ITU — International Telecommunication Union
POS — Point Of Sale.Retail term, being the physical point at which products are displayed on shelves or paid for at the checkout, as in the EPOS acronym.
EVA — Enterprise Virtual Array
DCOM — Distributed Component Object Model
IDIOT — Intrusion Detection In Our Time
LNIB — Like New In Box
SCM — Source Code Management
RTG — Radioisotope Thermoelectric Generator
SVG — Scalable Vector Graphics
MCP — Multi-Chip Package
P2SC — Power 2 Super Chip
ZOPE — Z Object Publishing Environment
IEC — International Electrotechnical Commission
FIFO — First In, First Out
CAN-SPAM — Controlling the Assault of Non-Solicited Pornography and Marketing Act of 2003
GML — Generalized Markup Language
DNR — Digital Noise Reduction
MITM — Man in the Middle
SSL — Secure Socket Layer
DID — direct inward dial
DAA — Distributed Application Architecture
MOM — Microsoft Operations Manager
IOPS — Input/Output Operations Per Second
PXE — Preboot Execution Environment
AS — Activesync
VSE — Virtual Storage Extended
BOL — Books Online
TBR — Technology Business Research
BGP — Border Gateway Protocol (routing protocol)
LD — Laser Disc

DAR — Disk Archive
PC — Personal computer (host)
COPS — Common Open Policy Service
DSL — Digital Subscriber Line
QBE — Query By Example
ODA — Open Document Architecture
PCL — Printer Command Language
CORS — Continuously Operating Reference Stations
DOS — Disk Operating System
RARP — Reverse Address Resolution Protocol
RMC — Resource Monitoring and Control
CIC — Cisco Info Center
DEP — Data Execution Prevention
HZ — cycles per second (hertz)
RPF — Reverse Path Forwarding
NSA — Network Security Appliance
ALM — Asynchronous Line Multiplexer
BIP — Bit-Interleaved Parity
TCA — Transaction Cost Analysis
CAM — computer aided manufacturing
PU — Physical Unit (IBM)
PRI — Primary Rate Interface (ISDN)
UL — Underwriters Laboratory
EMA — Enterprise Management Architecture
CRM — Customer Relationship Management
CGI — Conseillers en Gestion et Informatique
ACF — Access Control Field
CRLF — Carriage Return Line Feed
ARS — Action Request System
ESI — Edge Side Includes
SOW — Statement Of Work
BSOD — Blue Screen Of Death
PSN — Playstation Network
YIM — Yahoo! Instant Messenger
PDU — Protocol data unit (such as segment, packet, frame, etc.)
CCA — Citrix Certified Administrator
VPLS — Virtual Private LAN Service
SNS — Social Networking Site
TSF — Text Services Framework
AA — Automated Attendant
ROI — Return on Investment
SQL — Structured Query Language
UM — Unified Messaging
CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
KWH — Kilowatt hour (one thousand watt hours) (measurement)
FCS — Frame check sequence (Ethernet)
FDM — Frequency Division Multiplex
CHAP — Challenge Handshake Authentication Protocol (ATM)
PS — Photoshop
LAC — L2TP Access Concentrator

XML — Extensible Markup Language
SCADA — Supervisory Control And Data Aquisition
PPP — Point-to-Point Protocol
GPF — General Protection Fault
DOS — Denial Of Service
PSN — Processor Serial Number
NNTP — Network News Transfer Protocol
IEEE — Institute of Electrical and Electronic Engineers, Inc.
IFL — Integrated Facility for Linux
JVM — Java Virtual Machine
TUR — Trunk Utilization Report
ADCCP — Advanced Data Communications Control Procedures
MPOE — Minimum Point of Entry
CE — Connection Endpoint
DTM — Dynamic synchronous Transfer Mode
SA — Source-Active
MARS — Multivariate Adaptive Regression Splines
SBS — Small Business Server
DASD — Direct Access Storage Device
ATL — Automated Tape Library
LED — law enforcement desk; light emitting diode
MAC — Media Access Control
EUEM — end user experience monitoring
DMA — direct memory access (computer term)
AMMA — Advanced Memory Management Architecture
AVR — Automatic Volume Recognition
ERP — Error Recovery Procedure
VCD — Video Compact Disc
RADVD — Router Advertisement Daemon
CISO — Chief Information Security Officer
DPA — Document Printing Application
EOS — Ethernet Over SONET
UCD — User-Centered Design
IBM — International Business Machines Corporation
LPA — Linear Power Amplifier
HSB — Hue, Saturation, Brightness
IA-32/64 — Intel Architecture - 32/64
IPV4 — Internet Protocol Version 4
SPA — Software Publishers Association
SFT — System Fault Tolerance
CCU — Communication Control Unit
CIP — Common Industrial Protocol
ADDM — Automatic Database Diagnostic Monitor
SDLC — Synchronous Data Link Control
INMARSAT — International Maritime Satellite
CCITT — Comite Consultatif International de Telegraphique et Telephonique (International Telegraph and Telephone Consultative Committee) [now ITU-T]
ACF2 — Access Control Facility 2
OWL — Web Ontology Language
GIB — Gibibyte
TDM — Time Division Multiplexer

DLP — Data Leak Prevention
NTP — Network Time Protocol
VRU — Voice Response Unit
DSP — Digital Signal Processor
GOMS — Goals, Operators, Methods and Selection Rules
GDM — Global Delivery Model
LDAP — Lightweight Directory Access Protocol (pronounced Ell-dap)
EIM — Enterprise Identity Mapping (IBM)
WMS — Warehouse Management System
CPNI — Customer Proprietary Network Information
CNN — Cable News Network's
ECMA — European Computer Manufacturer's Association
PIXEL — Picture Element
IBSG — Internet Business Solutions Group
OBEX — Object Exchange Protocol
GDS — Global Data Synchronization
DHA — Directory Harvest Attack
FAN — File Area Network
AMS — Access Method Services
COTS — Commercial Off the Shelf Software
US — Unit Separator
PEAP — Protected Extensible Authentication Protocol
PNP — Plug aNd Play
DV — Digital Video
COW — Copy-On-Write
TOA — Time Of Arrival
MTU — Maximum Transmission Unit
NNI — Network-to-Network Interface (ATM)
VFM — Virtual File Manager
80/20 — Eighty-twenty rule
RFS — Remote File System
NASS — Network Attachment Subsystem
DML — Data Manipulation Language
DLL — Dynamic Link Library (computer file)
STX — Start of Text
AHP — Analytical Hierarchy Process
MODEM — MOdulator/DEModulator
AP — access point
CMRS — Commercial Mobile Radio Service
DDE — Dynamic Data Exchange (in software parlance)
SSH — Secure Shell (Unix program)
RTU — Remote Terminal Unit
ICE — Interactive Connectivity Establishment
PDF — Program Development Facility
SW — Software (SFTWE Preferred)
CLI — Command line Interface (Cabletron)
SRT — Source Routing Transparent
IEC — Interexchange Carrier
MVNO — Mobile Virtual Network Operator
BAPI — Business Application Programming Interface (SAP)

PCM — Pulse-Code Modulation
SOAP — Simple Object Access Protocol
MMS — Microsoft Media Server
UCM — Universal Content Management
CDH — Customer Data Hub
RACF — Resource Access Control Facility
LES — LAN Emulation Server
IPL — International Private Line
LNP — Local Number Portability
RRPP — Rapid Ring Protection Protocol
UCD — Unicode Character Database
POP — Point Of Presence (Internet)
LSA — Local Security Authority
LRF — Little Rubber Feet
MTTF — Mean Time To Failure
ACID — Atomicity Consistency Isolation Durability
ASP — Application Service Provider
EIB — Execute Interface Block (CICS)
SMART — Self-Monitoring Analysis And Reporting Technology
IFRAME — inline frame
ECC — Error Correction Code (Error Checking And Correction)
ICMS — Incentive Compensation Management System
XNRL — Xml Namespace Related-Resource Language
KBS — Knowledge-Based System
FOC — Field Oriented Control
NCI — Network Channel Interface
RTT — Radio Transmission Technology
DXC — Digital Cross-Connect
CAROT — Centralized Automatic Reporting on Trunks
BPEL — Business Process Execution Language
PMR — Perpendicular Magnetic Recording
MSI — Medium-Scale Integration
DRM — Digital Rights Management
POTS — Plain Old Telephone Service (FCW)
TOE — TCP/IP Offload Engine
JBOD — Just a Bunch Of Disks/Drives
BFR — Bona Fide Request
MOO — MUD Object Oriented
EAI — Enterprise Application Integration
SLIC — Subscriber Line Interface Card
PF — Parity Flag
BPDU — Bridge Protocol Data Unit
BCC — Block Check Character
FCL — Framework Class Library
SWAP — Shared Wireless Access Protocol
BPEL4WS — Business Process Execution Language for Web Services
AT&T — American Telephone and Telegraph (U.S. company, also known as "Ma Bell")
FCC — Federal Communications Commission (US)
VSNL — Videsh Sanchar Nigam Limited
CNAME — Canonical Name

LA — Load Address
MS — The Company Microsoft
EAS — Enterprise Application Server
MAP — Manufacturing Automation Protocol
MIPS — Millions of Instructions Per Second
TED — Torrent Episode Downloader
AWG — American Wire Gauge
MAPS — Mail Abuse Protection System
ARIN — American Registry for Internet Numbers
LAIPE — Link And In Parallel Execute
ABM — Asynchronous Balance Mode
CMS — Content Management System
LANE — Local Area Network Emulation
DAE — Disk Array Enclosure
VAROS — Variable Refraction Optical System
FPS — Flexible Payments Service
BEEP — Blocks Extensible Exchange Protocol
VSWR — Voltage Standing Wave Ratio
RS — Record Separator
GFP — Generic Framing Procedure
URT — User Registration Tool
GAP — Groups, Algorithms and Programming
MDS — Master Data Services
AAB — All-to-All Broadcast
ZCAV — Zone Constant Angular Velocity
VOIP — Voice Over IP (Internet Protocol)
DNA — Deoxyribose Nucleic Acid
OPOD — Oracle Procurement On Demand
HPF — High Pass Filter
EMC — Electromagnetic Compatibility
CCD — Charge Coupled Device - a device for the movement of electrical charge.
PBX — Private Branch eXchange (company phone system)
RDA — Remote Data Access
CCP — Certified Computer Professional
MPLS — Multiprotocol Label Switching
MIT — Massachusetts Institute of Technology (U.S.)
TTP — Trusted Third Party
IPM — Interpersonal Message
BOT — Build-operate-transfer [an Agreement Or Contract]
HHT — Hand-Held Terminal
FIPS — Federal Information Processing Standard
CPC — Cost Per Click-through
NRM — Normal Response Mode
CPOE — Computerized Provider Order Entry
EGP — Exterior Gateway Protocol
CMM — Capability Maturity Model
HTT — Hyper-Threading Technology
PVV — Pin Verification Value
ENIW — Web-enabled Ethernet Networking Interface
WTL — Windows Template Library

LL — Local Loopback
ADSM — ADSTAR Distributed Storage Manager
DWS — Dialable Wideband Service
RDF — Resource Description Framework
ODBC — Open Database Connectivity
IDT — Interrupt Descriptor Table
QD — Queuing Delay
3G — Third Generation mobile phone network
VIC — Voice Interface Card
PSB — Program Specification Block
DDNS — Dynamic Domain Name System (networking)
CPC — Calling Party Control
ACAP — Application Configuration Access Protocol
ASR — Automated System Recovery
BPV — Bipolar Violation
SCPC — single channel per carrier
MH — Mobile Host
ZB — ZettaByte
KHZ — kilohertz (1000 cycles per second)
OLIVE — On-Line Interactive Virtual Environment
RUS — Recipient Update Service
LSR — Leaf Setup Request
IOS — Input/Output Supervisor
PIM — Personal Information Manager
DX — Direct X
BFT — Binary File Transfer
EM — End of Medium
RMA — Rate Monotonic Analysis
MIB — Management Information Base (ATM)
QPM — QOS Policy Manager
NDR — Non-Delivery Receipt
MPN — Microsoft Partner Network
NLA — Network Location Awareness
BGA — Ball Grid Array [electronic Packaging]
ABEND — Abnormal End
EOT — End Of Transmission
MPEG — Motion Picture Experts Group
OLE — Object Linking and Embedding (Microsoft communication protocol)
RAN — Radio Access Network
XHTML — Extensible Hypertext Markup Language
BCP — Best Current Practice
BRI — Basic Rate Interface
DRP — Disaster Recovery Plan
DASH — Desktop and Mobile Architecture for System Hardware
ICC — Internet Commerce Corporation
ETA — Embedded Transport Acceleration
C64/128 — Commodore 64/128
LRU — Least Recently Used
FAX — Facsimile
LP — Logical Partition

TRANSCEIVER — Transmitter/Receiver
VRC — Vertical Redundancy Check
BTX — Balanced Technology Extended
NAK — Not Acknowledged
FPGA — Field-Programmable Gate Array
DSM — Dependency Structure Matrix
90-90 — Ninety-Ninety Rule
IDS — Intrusion Detection System
NLP — Natural Language Processing
STT — Secure Transaction Technology
JJ — Josephson Junction
24/7 — Twenty-four hours a day, seven days a week
TSO — time Sharing option (of OS/360, IBM)
SMATV — Satellite Master Antenna Television
PPPOE — Point-to-Point Protocol Over Ethernet
DVMRP — Distance Vector Multicast Routing Protocol
MERVA — Message Entry and Routing with Interfaces to Various Applications
CNM — Communication Network Management
PVC — Permanent Virtual Circuit (ATM)
COAX — Coaxial
PEARL — Process and Experiment Automation Realtime Language
NIST — National Institute of Standards & Technology (US)
DDI — Device Driver Interface
SCM — Supply Chain Management
ARM — Asynchronous Response Mode
DNIC — Data Network Identification Code
SVA — Shared Virtual Area
IGRP — Interior Gateway Routing Protocol
VGA — Video Graphics Array
PHP — Hypertext Preprocessor
MUD — Multi-User Dungeon (gaming)
UPS — Uninterruptible Power Supply
EDP — Electronic Data Processing Plc (London Stock Exchange [LSE])
ICA — Independent Computing Architecture
TFRC — TCP-Friendly Rate Control
DFDSS — Data Facility Data Set Services
BPPM — BMC ProactiveNet Performance Management
IANA — Internet Assigned Numbers Authority
EIGRP — Enhanced Interior Gateway Routing Protocol
CDI — Compact Disk Interactive
VDT — Video Display Terminal
GTL — Gunning Transceiver Logic
RMI — Remote Method Invocation
CAT — Computer Aided Testing
ECP — Electronic Check Presentment
YB — Yottabyte
TED — Technology Entertainment and Design
MDF — Main Distribution Frame
CL — Connectionless
UCS — Universal Character Set

SAM — Serial Access Memory
B2C — Business-to-Consumer
LISP — List Processing Language
CIFS — Common Internet File System
PABX — private automatic branch exchange (telephone)
MI — Multiple Inheritance
QAM — quadrature amplitude modulation
APS — Automatic Protection Switching (SONET/SDH)
ORB — Object Request Broker
GIFT — GNU Image-Finding Tool
PERL — Practical Extraction and Report Language
RCC — Radio Common Carrier
L2S — Layer 2 Switch
DE — Discard Eligibility (ATM)
FBD — Fully Buffered DIMM
TI — Texas Instruments, Inc.
ORF — Open Reading Frame (DNA Sequence)
IF — Interrupt Flag
HIGHMAT — High-performance Media Access Technology
GNU — GNU's Not UNIX (a Recursive Acronym)
PAP — Password Authentication Protocol (ATM)
DLDP — Device Link Detection Protocol
DDBMS — Distributed Database Management System
PB — Petabyte
ANR — Automatic Network Routing
RSA — Rural Service Area
MOTD — Message of the Day
FMH — Function Management Header
BNF — Backus-Naur Form (computing)
LZW — Lempel-Ziv-Welch
CPL — Current Privilege Level
VDD — Virtual Device Driver
RIR — Regional Internet Registry
BSC — Binary Synchronous Communication
ISOC — Internet Society
AIM — Aol Instant Messege
LVDS — Low Voltage Differential Signaling
D&I — Drop and Insert
DUAL — Diffusing-Update Algorithm
BPDM — Business Process Definition Metamodel
SDVO — Serial Digital Video Output
CATP — Caffeine Access Transport Protocol
UPNP — Universal Plug and Play
LATA — Local Access and Transport Area
VC-N — Virtual Container-n
PII — Personally Identifiable Information
BSA — Business Software Alliance
CDE — Common Desktop Environment
3W — World Wide Web
SDK — Software Development Kit (Microsoft)

DFM — Device Fault Manager
P2P — Peer to Peer (as in music file sharing systems like KaZaA)
COIN — Community of Interest Network
UI — User Interface
MSDB — main storage database
RISC — Reduced Instruction Set Computer
WIMAX — World Interoperability for Microwave Access
BLOB — Binary Large Object
TB — Terabit
OCX — OLE Control Extension
GRS — Global Resource Serialization
EOP — End of Procedure
CFV — Call For Vote(s)
MSPP — Multiservice Provisioning Platform
CAD — Computer-Aided Design
COMDEX — Computer Dealers Exposition
WAE — Wireless Application Environment
EFS — Error Free Seconds
KSR — Keyboard Send/Receive
EMPI — Enterprise Master Patient Index
VF — Voice Frequency
FAST — Federation Against Software Theft
MS-DOS — Microsoft Disk Operating System
DAT — Digital Audio Tape
GAS — GNU ASsembler
SHA — Secure Hash Algorithm
QDR — Quad Data Rate
DMD — Directory Management Domain
VMS — Virtual Memory System
KB — Kilobyte: One thousand and twenty-four bytes kbps kilo bit per second
IHS — Integrated Heat Spreader
LMS — Learning management system
JPEG — Joint Photographic Experts Group (24-bit image storage format)
TSM — Tivoli Storage Manager
SDSF — System Display and Search Facility
JSON — JavaScript Object Notation
JRE — Java Runtime Environment
KW — Kilowatt (one thousand watts) (measurement)
RPR — Resilient Packet Rings
CORBA — Common Object Request Broker Architecture
DN — Distinguished Name
EIA — Extended Interaction Amplifier
HDMI — High-Definition Multimedia Interface
AML — Astronomical Markup Language
ARQ — Automatic Repeat-reQuest
BOOTP — Bootstrap Protocol
OTP — Open Trading Protocol
T — Time
LACP — Link Aggregation Control Protocol
AFIS — An Automated Fingerprint Identification System

ECS — Extended Character Set
OPI — Open Prepress Interface
ASK — Anomalous State of Knowledge
ETN — Electronic Tandem Network
DUNS — Data Universal Numbering System
4C ENTITY — Four Company Entity
SCP — Secure Copy Protocol
AJAX — Asynchronous Javascript and XML
MGC — Multimedia Gateway Controller
RNA — Ribo Nucleic Acid
BAF — Bellcore AMA Format
DTD — Document Type Definition (XML)
DDN — U.S. Defense Data Network
ADB — Apple Desktop Bus
SDLC — Software development life cycle
PON — Passive Optical Network
QI — Query Interface
T2L — TRANSISTOR-TRANSISTOR LOGIC
CBN — Common Bonding Network
FEC — Forward Error Correction
AAA — authentication, authorization, and accounting
SMBP — Server Message Block Protocol
IGMP — Internet Group Management Protocol
MSW — Machine Status Word
SCR — Sustainable Cell Rate
CAI — Common Air Interface
CMT — Connection Management
NANOG — North American Network Operators Grou
NRZ — Non-Return-To-Zero
G2C — Government to Citizen
GIF — Graphic Interchange Format
MMU — Memory Management Unit
SDH — Synchronous Digital Hierarchy (ATM)
CKD — Count Key Data
CCOW — Clinical Context Object Workgroup
POD — Proof Of Deposit
FCT — File Control Table
EEPROM — Electric Erasable Programmable Read Only Memory
APC — Asynchronous Procedure Call
OFDMA — Orthogonal Frequency-Division Multiple Access
AHCI — Advanced Host Controller Interface
PPTP — Point-to-Point Tunneling Protocol
OFM — Oracle Fusion Middleware
PDS — Partitioned Data Set
DCS — Desktop Color Separation
YKYBHTLW — You Know You've Been Hacking Too Long When
NMS — Network Management Station
RNA — Ring No Answer
IFCP — Internet Fibre Channel Protocol
CUT — Control Unit Terminal

ESP — Encapsulated Security Payload
FTTC — Fibre To The Curb
E- — Electron
CES — Consumer Electronics Show
TDMA — Time Division Multiple Access
IAB — Internet Architecture Board
JSP — Java Server Page
B — Barnabites
KNI — Katmai New Instructions
WAP — Wireless Application Protocol
MBPS — Megabits per second
ASN.1 — Abstract Syntax Notation One
SIIA — Software & Information Industry Association (formerly the Software Publishers Association)
LER — Label Edge Router
IAD — Integrated Access Device
EFS — Encrypting File System
VLK — Volume License Key
USP — Universal Storage Platform
BLOG — Better Listings on Google
AFP — Apple Filing Protocol
ONE — Open Net Environment (Sun)
CPS — characters per second
LPA — Link Pack Area
SEO — Search Engine Optimizer
UBE — Unsolicited Bulk Email
GUID — Globally Unique Identifier
NSS — Network Switching Subsystem
GNOME — GNU Network Object Model Environment
RDI — Remote Defect Indicator (UNI Fault Management)
ZTE — Zhong Xing Telecommunication Equipment
5GL — 5th Generation Language
DHTML — Dynamic HyperText Markup Language
JACK — Jack Audio Connection Kit
GDPS — Geographically Dispersed Parallel Sysplex
APM — Active Policy Management
BLAST — Basic Local Alignment Search Tool
RSVP — Resource Reservation Protocol (Internet)
TCO — Total Cost of Ownership
SFF — Small-Form-Factor
ADDMD — Administrative Directory Management Domain
CDP — Continuous Data Protection
IB — Interface Bus
NAT — Network Address Translation
OOPL — Object Oriented Programming Language
RSN — Real Soon Now [which may be a long time coming]
WSC — Windows Security Center
PL/1 — Programming Language 1
ALP — Application Layer Protocol
RADIUS — Remote Authentication Dial-In User Service
RMS — root mean square (preferred over "RMS")

MAC — Mid-Atlantic Crossing
UART — Universal Asynchronous Receiver-Transmitter
CGM — Computer Graphics Metafile
DAVID — Digital Audio/Video Interactive Decoder
BNC — British Naval Connector
EISA — Extended Industry Standard Architecture
KDC — Kerberos Key Distribution Center
AWT — Abstract Window Toolkit (Java)
MPEG — Moving Picture Experts Group (International Standards Organisation/International Electrotechnical Commission)
BER — Basic Encoding Rules (ASN.1)
UR — Unit Record
AUIML — Abstract User Interface Markup Language
MCA — Message Channel Agent
EOB — End Of Block
NEWS — network extensible window system
ADSR — Attack, Decay, Sustain, Release (sound envelope specification)
DAB — Digital Audio Broadcast
VDI — Virtual Desktop Infrastructure
UART — Universal Asynchronous Receiver/Transmitter
ACPI — Advanced Configuration and Power Interface
LUN — Logical Unit Number
SSID — Service set identifier (Wi-Fi)
DPG — Dedicated Packet Group)
CIT — Computer Integrated Telephony
OOP — Object-Oriented Programming
PICNIC — Problem in Chair Not in Computer
HLR — Home Location Register
EDGE — Enhanced Data Rates for GSM Evolution
SNA — System Network Architecture
SPD — Serial Presence Detect
VPI — Virtual Path Identifier
JCL — Job Control Language
KDE — K Desktop Environment
ANI — Automatic Number Identification (Caller ID)
TFTP — Trivial File Transfer Protocol (ATM)
3D — three-dimensional (geophysics)
ICF — Isochronous Convergence Function
CCW — Channel Command Word
AIP — Advanced Inspection and Prevention
CPR — Computerized Patient Record
ESB — Enterprise Service Bus
IIOP — Internet Inter-ORB Protocol
OASIS — Organization for the Advancement of Structured Information Standards
FEP — Front-End Processor
GNN — Global Network Navigator
IRDS — Information Resource Dictionary System
DET — Directory Entry Table
ALG — Application Layer Gateway
EA — Extended Address Field Bit
BIBOP — big bag of pages

FAT — File Allocation Table
SLS — Softlanding Linux System
AMT — Address Mapping Table
POP3 — Post Office Protocol 3 (email)
KM — Knowledge Management
TNC — Trusted Network Connect
SDU — Service Data Unit (ATM)
VIO — Virtual Input/Output
ESP — Estimated Street Price
LBA — Logical Block Addresses
WPM — speech--words per minute
PSPDN — Packet-Switched Public Data Network
OPS — Off-Premise Station
POP — Post Office Protocol
RNI — Raw Native Interface
XNI — Xerces Native Interface
NVOD — Near Video On Demand
MALWARE — malicious software
RF — Resume Flag
NAS — Network Application Support
GMS — Global Messaging Service
UCR — Undercolor Removal
HBA — Host Bus Adapter
RDT — Remote Digital Terminal
IMAP — Internet Message Access Protocol
WI-FI — Wireless Fidelity
CCH — Connections per Circuit Hour
OSDL — Open Source Development Lab
EFM — Enterprise fraud and misuse management
MIA — Media Interface Adapter
RJE — Remote Job Entry
VAX — Virtual Address Extension
EDW — Enterprise Data Warehouse
TKIP — Temporal Key Integrity Protocol
VAIO — Video Audio Integrated Operation
GGSN — Gateway GPRS Support Node
ETTB — Ethernet to the Business
AIX — Advanced Interactive Executive (IBM)
RPI — Rockwell Protocol Interface
IOA — Input/Output Adapter
VBA — Visual BASIC for Applications
DCE — Data Communication Equipment
SOS — Sophisticated Operating System
LPX — Low Profile Extended
MANET — Mobile Ad Hoc Network
TAE — Text Analysis Engine
DSS — Digital Signature Standard
CEVA — Content-Enabled Vertical Application
CBDS — Connectionless Broadband Data Service
IOCS — Input/Output Control System

AV — Audio/Video
XSS — Cross-Site Scripting
DUA — Directory User Agent
CFMN — Client For Microsoft Networks
GID — group identification number
WRT — Weighted Risk Trend
WAF — Web Application Firewall
CES — Character-Encoding Scheme
DISA — Data Interchange Standards Association
PAT — Performance Acceleration Technology
S — second (do NOT use "sec" for "second;" use "sec" for "secant")
EDF — Execution Diagnostic Facility
BDF — Building Distribution Frame
PCMCIA — Personal Computer Memory Card International Association
BPI — bits per inch
TTL — Time To Live
24X7 — Twenty-four hours a day, seven days a week
DIR — Directory
GPWW — Group Practice Without Walls
CBR — Constant Bit Rate
ACSE — Association Control Service Element
LCS — Lotus Communication Server
RADA — Random Access Discrete Address
IPP — Internet Printing Protocol
CMTS — Cable Modem Termination System
CSPDN — Circuit Switched Public Data Network
SMB — Server Message Block
LMP — Link Manager Protocol
SCI — Scalable Coherent Interconnect
DBCS — Double-Byte Character Set
QDOS — Quick And Dirty Operating System (cue-doss)
PET — Personal Electronic Transactor
PER — Program Event Recording
CLR — Common Language Runtime
APS — Advanced Planning and Scheduling
ICANN — Internet Corporation for Assigned Names and Numbers
CLA — Corporate License Agreement
VLE — Virtual Learning Environment
SRAT — Static Resource Affinity Table
DEMUX — Demultiplexer
ASP — Abstract Service Primitive
TFS — Three Finger Salute
LRC — Longitudinal Redundancy Check
IPCP — Internet Protocol Control Protocol
PIB — Pebibyte
JDBC — Java Database Connectivity
FRU — Field Replaceable Unit
SIG — SMDS Interest Group
JMX — Java Management Extensions
INC — International Network of Crackers

FCCH — Frequency Correction Channel
CAPPC — Computer Aided Production Planning and Control
VRS — Virtual Reference Station
GCC — GNU Compiler Collection
NOC — Network Operations Center
GDB — GNU Debugger
DDCMP — Digital Data Communications Message Protocol
IOCP — Input/Output Configuration Program
EFT — Electronic Funds Transfer
XSD — XML Schema Definition
VSAT — Very Small Aperture Terminal (satellite service)
CDC — Call Data Channel
VCI — Virtual Channel Identifier
SMISHING — SMS phishing
K — Kilobyte
PROM — Programmable Read-Only Memory
IP — Intellectual Property
BOTNET — Robot Network
EPL — Ethernet Private Line
CSMA/CA — Carrier Sense Multiple Access with Collision Avoidance
ICSA — International Computer Security Association
MIME — Multipurpose Internet Mail Extension
ODM — Original Design Manufacturer
MCBF — Mean cycles between failures
CRACK — Challenge/Response Authentication of Cryptographic Keys
CLV — Constant Linear Velocity
PCI DSS — Payment Card Industry Data Security Standard
RUP — Rational Unified Process
VBR — Variable Bit Rate (ATM)
SMDS — Switched Multimegabit Data Service (ATM)
B2E — Business-to-employee electronic
SRL — Singing Return Loss
MICR — Magnetic Ink Character Recognition
DQDB — Distributed Queue Dual Bus
OSF — Open Software Foundation
IGP — Interior Gateway Protocol
UCM — Use Case Map
HDTV — High Definition Television
0KB.IN — Free Knowledge Base of Internet
BBC — British Broadcasting Corporation
EFI — Extensible Firmware Interface
ABAP — Advanced Business Application Programming
B-ISDN — Broadband Integrated Services Digital Network
CST — Consolidated Service Test
VORTAL — Vertical Portal
NE — Network Element
DPI — Dots per inch.
CHAP — Challenge-Handshake Authentication Protocol (PPP)
FPML — Financial Products Markup Language
RFCOMM — Radio Frequency Communication

CCNA — Cisco Certified Network Associated
KBPS — kilobits per second
COPS — Communications Outsourcing and Professional Services
S/W — Software
WINS — Windows Internet Name Service
HKCC — HKEY_CURRENT_CONFIG
BAA — Blanket Authorization Agreement
IRQ — Interrupt Request
UMA — Unlicensed Mobile Access
CCTLD — country code Top Level Domain
SAD — Security Association Database
SMI — Structure of Management Information
LAP-F — Link Access Procedure - Frame Mode
BHCC — Busy Hour Call Completion
VCC — Virtual Channel Connection (ATM)
XPFE — Cross Platform Front End
JDK — Java Development Kit
ISV — Independent Software Vendor
NAS — Network-Attached Storage
POE — power over ethernetinjector
TIFF — Tag Image File Format
UML — Unified Modeling Language (Object Management Group, OMG)
CSC — Collection of Small Companies. Alternative interpretation (apparently used by staff) of the CSC company name, which properly stands for Computer Sciences Corporation. The 'Collection of Small Companies' version reflects CSC's operatianal structure, which
APC — Antenna Phase Center
ACL — Asynchronous Connectionless Link
MMX — Matrix Math Extensions (Multimedia Extensions)
MMORPG — Massive Multiplayer Online Role Playing Game
CSW — Channel Status Word
TSR — Terminate and Stay Resident [software program]
TLD — Top Level Domains
KYC — Know Your Customer
ITWAB — IT Workload Automation Broker Tools
VDI — Video Display Interface
CT2T — Continuous Tone to Tape
CSCF — Call Session Control Function
ACF — Advanced Communication Facility
DSOM — Distributed System Object Model
MDISK — managed disk
MSB — Most Significant Bit
LLDP — Link Layer Discovery Protocol
OHG — Operators Harmonization Group
CUA — Common User Access
ASPI — Advanced SCSI Programming Interface
LCR — Least Cost Routing
NASDAQ — National Association for Security Dealers and Automatic Quotation
UUCP — Unix-to-Unix Copy Program
CMIP — Common Management Information Protocol (ATM)
APAAS — Application Platform as a Service
ABC — Atanasoff-Berry Computer
BASIC — Beginners Allpurpose Symbolic Instruction Code

BHCA — Busy Hour Call Attempt
LPAR — Logical Partition
BELLCORE — Bell Communications Research, Inc.
TETRA — TErrestrial TRunked RAdio
ACF — Advanced Communications Function (IBM)
SVGA — Super Video Graphics Array
VHS — Video Home System
SECC — Single Edge Contact Connector
DSAP — Destination Service Access Point
ADF — Application Development Facility
OCSP — Online Certificate Status Protocol
RLE — Run-Length Encoding
RPO — Recovery Point Objective
CALEA — Communications Assistance for Law Enforcement Act
VSAM — Virtual Storage Access Method
LSAP — Link Service Access Point
HAL — Hardware Abstraction Layer
PAAS — Platform-as-a-Service
SONET — Synchronous Optical Network
UUID — Universally Unique Identifier (see Also GUID)
JIT — Just-In-Time (inventory management)
ADE — Application Development Environment
ADF — automatic document feeder
BS 7799 — British Standard 7799
HASP — Houston Automatic Spooling Program
WFQ — Weighted Fair Queuing
PHI — Protected Health Information
ISACA — Information Systems Audit and Control Association
COCOMO — COnstructive COst MOdel
WINE — Wine Is Not an Emulator
BNN — Boundary Network Node
HXRC — Hitachi EXtended Remote Copy
EPM — Enterprise Performance Management
CAM — Capital Asset Management
SVC — Switched Virtual Circuit (ATM)
AAS — Auto Area Segmentation
IPLC — International Private Leased Circuit
SSA — Social Security Administration
GPU — Graphics Processing Unit
DIVX — Digital Video Express
RMON — Remote Monitoring
UAC — User Account Control
JS — JavaScript
ISAM — Indexed Sequential Access Method
COLO — Co-Location
CAMA — Centralized Automatic Message Accounting
XT — Extended Technology
CBQ — Class-Based Queuing
IDL — Interface Definition Language
DACL — Discretionary Access Control List

BAS — Basic Activity Subset
TCA — Task Control Area
CSO — Cold Start Only
AUDIT — Automated Data Input Terminal
ZCT — Zero Count Table
CVS — Computer Vision Syndrome
FWA — Fixed Wireless Access
FCS — Fluorescence Correlation Spectroscopy
INTERNIC — Internet Network Information Center
LT — Line Termination
AMPS — Advanced Mobile Phone System
TR — Terminal Ready
TBPS — Terabits Per Second
RP-SMA — Reverse Polarity SubMiniature version A
RX — Receive
CAM — Channel Access Method
MRU — Most Recently Used
HFS — Hierarchical File System
CTP — Capable To Promise
SPARC — Scalable Processor Architecture Reduced Instruction Set Computer
S/N — Signal-to-Noise ratio
BSA — Basic Service Area
GTP — GPRS Tunneling Protocol
VOXML — Voice Markup Language
RTC — Real Time Clock
NETBEUI — NetBIOS Enhanced User Interface
SIP — Session Initiation Protocol
PEF — Preferred Executable Format
IOC — ISDN Ordering Code
BCP — Business Continuity Plan
EDO — Extended Data Output
EPS — Encapsulated Postscript
BCI — Business Continuity Institute
NID — Network Interface Device
FOIRL — Fiber-Optic InterRepeater Link
EIM — Enterprise Information Management
NT — New Technology, also Windows NT
PAM — Pluggable Authentication Modules
CODEC — Coder/decoder
APL — Ada Programming Language
DTM — Document Table Model
TGT — ticket-granting ticket
FMEA — Failure Mode and Effects Analysis
P3P — The Platform for Privacy Preferences Project
IMS — Information Management System (LTPP)
SD — Span Destination
SAP — Serving Access Point
DMO — Distributed Management Object
SCTP — Screened Twisted Pair (cable)
AUI — Attachment Unit Interface

HDML — Handheld Device Markup Language
FIX — Financial Information EXchange Protocol
DPMI — DOS Protected Mode Interface
RACH — Random Access Channel
CELP — code-excited linear prediction
VCR — video cassette recorder/player
BRR — Business Readiness Rating
FTTN — Fiber-To-The-Neighborhood
BIA — Business Impact Analysis
ADSL — Asymetric Digital Subscriber Line
ADUC — Active Directory Users and Computers
PEM — Privacy-Enhanced Mail
SS7 — Signaling System 7
NPC — North Pacific Cable
TED — Tunnel Endpoint Discovery
MT-RJ — Mechanical Transfer - Registered Jack
UUNET — Unix-To-Unix Network
LMDS — Local Multipoint Distribution Service
9P — Plan 9 Filesystem Protocol
CPA — Cost Per Action
LPPL — LaTeX Project Public License
IFB — Internet Free/Busy
DF — Direction Flag
ZMA — Zone Multicast Address
EDG — Electronic Dot Generation
FPS — Frames per second.
LUW — Logical Unit of Work
OLED — Organic Light-Emitting Diode
UBGA — Micro Ball Grid Array
FPU — Floating Point Unit
OMR — Optical Mark Recognition
ECE — Economische Commissie voor Europa (United Nations) (Dutch: Economic Commission for Europe)
FXP — File Exchange Protocol
UPT — Universal Personal Telecommunications
MIDI — Musical Instrument Digital Interface
CISSP — Certified Information Systems Security Professional
AF — Assured Forwarding
NAN — Not A Number (computing)
CLNS — Connectionless Network Service
IPTV — Internet Protocol Television
IOPL — Input/Output Privilege Level
DIMM — Dual In-line Memory Module (computing)
CVC — Card Verification Code
FOIP — Fax Over Internet Protocol
XO — Crystal Oscillator
EAL — Evaluation Assurance Level
RSU — Recommended Service Upgrade
RLOGIN — Remote Login in Unix
VRML — Virtual Reality Modeling Language
COA — Care-Of Address

RMA — Return Materials Authorization
HUD — Head-Up Display
NSAP — Network Service Access Point
CSS — Cascade Style Sheet
FDD — Frequency Division Duplex
DCT — Digital Cordless Telephone
EMA — Enterprise Management Alliance
TWAIN — Technology Without An Interesting Name
POLP — Principle of Least Privilege
LSSGR — LATA Switching System Generic Requirements
L2TP — Layer 2 Tunneling Protocol
CDFS — Compact Disc File System
XBMC — Xbox Media Center
SCDS — Source Control Data Set
CJK — Chinese, Japanese, and Korean
LCM — Life Cycle Management
GMRP — GARP Multicast Registration Protocol
FOT — Fiber Optic Terminal
COSS — Cross Operating System Service
XFR — Transfer Case (drafting and design)
PDX — Printer Description eXtension
MIP — Multum in Parvum
BOC — BELL OPERATING COMPANIES
DLT — Digital Linear Tape
VML — Vector Markup Language
MCP — Microsoft Certified Professional
EPO — ePolicy Orchestrator
UUCP — UNIX to UNIX Copy Package
ESN — Electronic Serial Number
MES — Manufacturing Execution System
JFK — Just Fast Keying
SIM — Service Information Message
BTAM — Basic Telecommunications Access Method
NMC — Network Management Center
AV — Audio Visual
RELAX — REgular LAnguage description for XML
IMSI — International Mobile Subscriber Identity
LAMP — Linux, Apache, MySQL and PHP
DSR — Data Set Ready
BCPL — Basic Combined Programming Language (progenitor Of C)
LDP — Label Distribution Protocol
DMCA — Digital Millennium Copyright Act
MRTG — Multi Router Traffic Grapher
IBT — Internet-Based Training
IBG — Interblock Gap
FEXT — Far-End Cross Talk
XMT — Transmit
VMI — vendor-managed inventory
CAD/CAM — Computer Aided Design/Computer Aided Manufacturing
VRRP — Virtual Router Redundancy Protocol

FER — Frame Error Rate
LEC — Local Exchange Carrier
1FB — Single line, Flat Business rate;
ATPCO — Airline Tariff Publishing Company
CEO — Comprehensive Electronic Office
GDTR — Global Descriptor Table Register
E3 — Electronic Entertainment Expo
DMI — Desktop Management Interface (computing)
PUMA — Protected User Mode Audio (Microsoft)
BPP — Business Process Platform
TCS — Telecommunications Systems inc
OLPC — One Laptop Per Child
CLM — Contract Lifecycle Management
ASE — Application Service Element
CMYK — Cyan, Magenta, Yellow, Black
EUP — Enterprise Unified Process
IRTF — Internet Research Task Force
CCI — Controlled Cryptographic Item
ACSE — Application Control Service Element
IAM — Identity and Access Management
B-LLI — Broadband Low Layer Information
FLAG — Fiber Link Around the Globe
MOSFET — Metal-Oxide-Semiconductor Field-Effect Transistor
EPC — Electronic Product Code
DNSSEC — Domain Name System Security Extensions
CLOB — Character Large Object
ODI — Open Data-link Interface
TCP/IP — Transmission Control/Internet Protocol
UMID — Unique Material Identifier
DFWMAC — Distributed Foundation Wireless Media Access Control
SERP — Search Engine Results Positioning
CID — Configuration, Installation and Distribution
FTTB — Fiber To The Building
DAEMON — Disk And Execution Monitor
CP/M — Control Program/Monitor
MAP — Mobile Application Part
LVT — Light Valve Technology
FECN — Forward Explicit Congestion Notification (ATM)
BST — Binary Search Tree
J2SE — Java 2 platform, Standard Edition
MFT — Master File Table
ROP — Raster Operation(s)
NNTP — Network News Transport Protocol (ATM)
YAST — Yet Another Setup Tool
ACEE — Access Control Environment Element
SDSL — Symmetric Digital Subscriber Line
SDDL — Security Descriptor Definition Language
QTAM — Queued Teleprocessing Access Method
HID — Human Interface Device
DISA — U.S. Defense Information Systems Agency

CNN — composite network node
HSSI — High Speed Serial Interface (IBM)
JCAHO — Joint Commission on Accreditation of Healthcare Organizations
PARC — Palo Alto Research Center
CAR — committed access rate
4GT — 4 Gigabyte Memory Tuning
DUW — Distributed Unit of Work
FLAC — Free Lossless Audio Codec
KMS — Knowledge Management System
CSU — Channel Service Unit
UT — Upper Tester
PSN — packet switch node
ICQ — I Seek You (Instant Messaging Program)
EA — Electronic Arts Inc (NASDAQ Stock Exchange [NASDAQ])
NCP — Network Control Program
ZIF — Zero Insertion Force (The device on a)
MMOG — Massively Multiplayer Online Game
SSAP — Source Service Access Point
ZCS — Zero Code Suppression
AIOD — Automatic Identified Outward Dialing
SGI — Silicon Graphics Incorporated
NICE — Narrative, Immersive, Collaborative Environment
MEO — Medium-Earth Orbit
USP — Usage Sensitive Pricing
DLCI — data link connection identifier
ZRTP — Real-Time Transport Protocol
SMP — Simple Management Protocol
SAR — Segmentation and Reassembly (ATM)
DIMM — Dual Inline Memory Module
CAL — Client Access License
REST — Representational State Transfer
STM — Synchronous Transfer Mode
HIS — Healthcare Information System
BAL — Business Application Language
URN — Uniform Resource Namespace
RBAC — Role-Based Access Control
OFB — Output Feedback
VTAM — Virtual Telecommunication Access Method
UDMA — Ultra Direct Memory Access
SMF — Single-Mode Fiber
SDMA — Spatial Division Multiple Access
NSLOOKUP — Name Server Lookup
NDP — Neighbor Discovery Protocol
HCS — Header Check Sequence
PS/2 — Personal System/2 (Microsoft)
MD5 — Message Digest 5
PNRP — Peer Name Resolution Protocol
IPC — Interprocess Communication
GBPS — Gigabits per second
TED — Tiered Electronic Distribution

TSRM — Tivoli Service Request Manager
IMAC — installations, moves, adds and changes
ACSLS — Automated Cartridge System Library Software
MAA — Mail Access Agent
SDRAM — Synchronous dynamic random access memory
BRAN — Broadband Radio Access Network
PIX — Private Internet Exchange
SCCS — Source Code Control System
ATAG — Authoring Tool Accessibility Guidelines
NTSC — National Television System Committee video standard
VESA — Video Electronics Standards Association
SRM — Storage Resource Management
XMS — Extended Memory Specification
YIB — Yobibyte
SDP — Session Description Protocol
TEI — Total Economic Impact
LMPP — Lighttpd/MySQL/PHP/Python
CRUD — Create, Read, Update, Delete
HCM — Human Capital Management
RAID — Redundant Array of Independent Disks
ESPN — Entertainment and Sports Programming Network
UUCP — Unix To Unix Copy Program
GIOP — General Inter-ORB Protocol
MEMS — micro-electromechanical system
ECM — Enterprise Content Management
USF — Universal Service Fund
DAC — Digital-To-Analog Converter
PIM — Protocol Independent Multicast
ODMR — On-Demand Mail Relay
AMA — automatic message accounting
B2B — Business-to-Business
FTL — Flash Translation Layer
DDK — Driver Development Kit
MMO — Massively Multiplayer Online (computer Game)
REPDV — Reputation Digital Vaccine
XBRL — Extensible Business Reporting Language
CDP — Cisco Discovery Protocol
LSI — Large Scale Integration -> VLSI
LPD — Line Printer Daemon
UBR — Unspecified Bit Rate
MILNET — Military Network
CEH — Certified Ethical Hacker
HRAA — High Resolution Anti Aliasing
GNSO — Generic Names Supporting Organization
ESS — Employee Self-Service System
BRZ — Bipolar Return-to-Zero
XGA — eXtended Graphics Array
DUV — Data-Under-Voice
SPIT — Spam Over Internet Telephony
C — C Plus Plus

RDDL — Resource Directory Description Language (riddle)
PL — PAD Length
OSA — Open System Architecture
LIDE — Light emitting diode In-Direct Exposure
DEMARC — Demarcation point
CG — Computer Graphics
HP — Hewlett-Packard Development Company
CAM — Computer-Aided Manufacturing
TRM — Teradata Relationship Manager
BSNL — Bharat Sanchar Nigam Limited
PAD — Packet Assembly Disassembly
CEMF — Cisco Element Management Framework
VLIW — Very Long Instruction Word
WWN — World Wide Name
OAT — Outside Air Temperature
PCS — Personal Communications Services
WRC — World Radiocommunication Conference
TELCO — Telephone Company
ISO — International Standards Organization
RAI — remote alarm indication
JAD — Joint Application Development
SDN — Software Defined Network
JTAG — Joint Test Action Group
SSO — Single Sign-On Once
SPE — Synchronous Payload Envelope
XHR — XMLHttpRequest
APNIC — Asia Pacific Network Information Center
APOT — Additional Point of Termination
XFN — XHTML Friends Network (see http://gmpg.org/xfn/)
SPSS — Statistical Package for the Social Sciences
BS — British Standard
TC — Transmission Convergence sub-layer of PHY layer)
EXIF — Exchangeable Image File
ID — IDentifier
FRAD — Frame Relay Access Device
PMM — Post Memory Manager
DIGERATI — digital version of literati (Italian)
VCPI — Virtual Control Program Interface
SDS — Sudden Death Syndrome
SANS — System Administration, Networking, and Security Institute
KSU — Key Service Unit
PCR — Peak Cell Rate
2G — Second Generation Wireless Systems
LSR — Line Service Request
ALI — Application Layer Interface
OMT — Object-modeling technique
ICRA — Internet Content Rating Association
CTX — Commited to Excellence
JBL — Jame B. Lansing
RSCT — Reliable Scalable Cluster Technology

HDD — Hard Disk Drive
ESS — Extended service set (Wi-Fi group)
GFC — Generic Flow Control (ATM)
PMI — Privilege Management Infrastructure
JES — Job Entry Subsystem
OBI — Open Buying on the Internet
CPI — characters per inch
MSI — Micro-Star International
ASYNC — Asynchronous
CAC — Connection Admission Control (Asynchronous Transfer Mode)
CHTML — Compact Hypertext Markup Language
PTR RECORD — Pointer record
NCP — NetWare Core Protocol
RDN — Relative Distinguished Name
PHY — Physical Layer
REG — range extender with gain
PAC — Proxy Auto-Configuration
RNR — Receive Not Ready
ORM — Operational Risk Management
EOSDH — Ethernet Over SDH
RHCE — Red Hat Certified Engineer
ATA — Analog Telephone Adaptor
IDEA — International Data Encryption Algorithm
FIOS — Fiber Optic Services
CFMD — Certified for Microsoft Dynamics
LOB — Line-of-Business
HAVI — Home Audio Video Interoperability
ISATAP — Intra-Site Automatic Tunnel Addressing Protocol
PFM — Printer Font Metric
SAPI — Service Access Point Identifier
MVS — Multiple Virtual System
ILO — Integrated Lights-Out (Technology)
FM — frequency modulation
CCPM — Critical Chain Project Management
ACB — Access method Control Block
COAX — Coaxial Cable
K-MAP — knowledge map
WPA — Wi-Fi Protected Access
RLC — Radio Link Control
PPT — Processing Program Table
RHEL — Red Hat Enterprise Linux
TAXI — Transparent Asynchronous Transmitter/Receiver Interface
HPFS — High Performance File System
ICDL — International Computer Driving Licence
CIE — Color Model = Commission Internationale De L'Eclairage Color Model
MNS — Master of Network Science
IPPP — Internet presence provider and promoter
QUAGI — quad and Yagi
S/PDIF — Sony/Philips Digital Interface
AMR — Automated meter reading also known as Automatic Meter Reading

LPT — Line Print Terminal
B8ZS — Binary Eight Zero Substitution
EBML — Extensible Binary Meta Language
AS2 — Applicability Statement 2
6DOF — Six Degrees of Freedom
ROA — Recognized Operating Agency
24P — 24 frames per second Progressive
EPP — Enhanced Parallel Port (PC)
FCB — Format Control Buffer
WQUXGA — Wide Quad Ultra Extended Graphics Array
BMT — Biel Mean Time
CIB — Computer Integrated Business
AOCE — Apple Open Collaboration Environment
SSE — Streaming SIMD Extensions
HID — high intensity discharge (electricity)
MPP — Massively Parallel Processing/Processor
PWM — Pulse width modulation
IXC — interexchange carrier
FERPA — Family Education and Right to Privacy Act
FSAA — Full Screen Anti-Aliasing
4GL — Fourth-Generation Language
SET — Secure Electronic Transaction
ITIL — Information Technology Infrastructure Library
ETX — End of Text
OLIC — online image copy
USHER — United States Higher Education Root Certificate Authority
B8ZS — Binary Eight Zero Suppression.
CDV — Cell Delay Variation(ATM)
GVN — Global Value Numbering
USO — Universal Service Obligation
JFS — IBM Journaling File System
NACHA — National Automated Clearing House Association
DTAM — Document Transfer, Access and Manipulation
ATOM — Any Transport Over MPLS
UTM — Universal Transverse Mercator (geographical Co-ordinate System)
TACACS — Terminal Access Controller Access Control System
EPN — Extended Port Network
VOX — Voice Operated EXchange
SIPP — Stable Image Platform Program
HRMS — Human Resource Management System
ATRAC — Adaptive Transform Acoustic Coding
MMC — Microsoft Management Console (Microsoft)
DXI — Data Exchange Interface
PLCP — Physical Layer Convergence Protocol (ATM)
EULA — End-User License Agreement (you-lah)
QTSS — QuickTime Streaming Server
IDQ — Informatica Data Quality
PSK — Phase Shift Key
JITT — Network for Just-In-Time Training in quality
CICS — Customer Information Control System (IBM Mainframe Software; Kicks Or C-I-C-S)

XMCL — eXtensible Media Commerce Language (digital rights management cross-product metadata system)
UCB — Unit Control Block
UTM — Unified Threat Management
WINFS — Windows Future Storage
EIR — Excess Information Rate
RTP — Routing Update Protocol
CCSE — Checkpoint Certified Security Expert
SLR — Service Level Reporter
PCRE — Perl-compatible regular expressions
MSI — Microsoft Software Installer
MPOA — MultiprotocolOver ATM
DLP — Digital Light Processing
SPF — Shortest Path First
PLC — Product Life Cycle
OCP — Oracle Certified Professional
CHPID — Channel Path Identifier
TVO — Total Value of Opportunity
OOO — Openoffice.org
FCPGA — Flip Chip Pin Grid Array
DMT — Discrete Multi-tone Transmission
ALM — Asset Lifecycle Management
ERL — Echo Return Loss
A2A — application-to-application
UMB — Upper Memory Block
3DES — Triple DES
ROHS — Restriction of Hazardous Substances
MOBO — Motherboard
NLM — NetWare Loadable Module
OTA — Over The Air
3I — Investors In Industry (venture Capitalists)
HFC — Hybrid Fiber Coaxial
IGES — Initial Graphics Exchange Specification, a data interchange standard for CAD/CAM systems
LCN — Local Communication Network
OMR — Optical Mark Reader
FTAM — File Transfer Access and Management
DAM — Direct Access Method
ETSI — European Telecommunication Standards Institute's
LRN — Location Routing Number
ADDM — Application Discovery and Dependency Mapping
UUT — Unit Under Test
AFI — Authority and Format Identifier
E2E — End-to-End
NUI — Natural User Interface
B-TA — Broadband Terminal Adapter
SIMM — Single In-line Memory Module
EPOC — Electronic Piece of Cheese
ARD — Automatic Ring Down
ISL — Inter-Switch Link
FUD — Fear, uncertainty and doubt
LBAC — Label-Based Access Control

TDR — Time-Domain Reflectometry
WDOG — Watchdog protocol
1080P — 1080 progressive
2B1Q — Two Binary One Quaternary
CAN — Controller–area network
WDS — Wireless Distribution System
BIN — Binary
ARAD — Architected Rapid Application Development
GAIA — GUI Application Interoperability Architecture
VADP — vStorage APIs for Data Protection
DICOM — Digital Imaging and Communications in Medicine
PUP — Potentially Unwanted Program
POG.COM — Play Online Games
APP — Application Program
WIBRO — Wireless Broadband
PAL — Processor Abstraction Layer
MUD — Multi-User Dimension
CHAT — Conversational Hypertext Access Technology
BPM — business process management
APPC — Advanced Program-to-Program Communication
JAAS — Java Authentication and Authorization Service
ACA — Australian Communications Authority's
CUOD — Capacity Upgrade on Demand
SATA — Serial Ata
VC — Virtual Circuit (ATM)
VDECK — Video Deck
BASH — Bourne-again shell
CLI — Calling Line Identification
WEBCAM — World Wide Web Camera
BRF — Benchmark Report Format
XMP — Extensible Metadata Platform
ISA — Internet Security and Acceleration Server
EMS — Enhanced Messaging Service
UMB — Ultra Mobile Broadband
IMPL — Initial Microprogram Load
CDDI — Copper Distributed Data Interface
BIST — built-in self test
GGP — Gateway-Gateway Protocol
LPB — Low Ping Bastard (gaming)
CAAS — Communications-as-a-Service
DISSOS — Distributed Office Support System
RAMDAC — Random Access Memory Digital-to-Analog Converter
QTM — Quadratic Texture Mapping
BCUG — Bilateral Closed User Group
VCM — Virtual Channel Memory
AOF — Advanced Open File
KUIP — Kernel User Interface Package
CBWFQ — Class-Based Weighted Fair Queueing
ASC — Abstract Syntax Checker
STM — Scanning Tunneling Microscopy

FLOPS — FLoating-Point Operations Per Second
ACL — Application Connectivity Link
RCA — Remote Control Amplifier
OPENCL — Open Computing Language
CDO — Care Delivery Organization
HADA — High Availability Disk Array
SCO — Santa Cruz Operation, Inc.
PPS — Packets Per Second
LME — Layer Management Entity
TUCOWS — The Ultimate Collection of Winsock Software
B-TE — Broadband Terminal Equipment
CLIPS — C Language Integrated Production System
CNE — Certified Network Engineer
CERN — Conseil Europeen Pour La Recherche Nucleaire
SASL — Simple Authentication and Security Layer
BMRT — Blue Moon Rendering Tools
ADT — Admission, Discharge and Transfer Information
100VG — 100 Voice Grade
KSH — Korn Shell Programming
PID — Process Identification Document
PT — Payload Type (ATM)
VHM — Voice Health Monitor
USRT — Universal Synchronous Receiver/Transmitter
MOPS — Mega Operations Per Second
OFX — Open Finance Exchange
ITAM — IT asset management
JCP — Java Community Process
SIS — Student Information System
NDMP — Network Data Management Protocol
EASDAQ — European Association of Securities Dealers Automated Quotation
WBMP — Wireless Bitmap
DMT — Digital-Discrete Multi-Tone
D2D — Disk-To-Disk
FARE — Film Automatic Retouching and Enhancement
QPSK — Quadrature Phase-Shift Keying
CER — Corporate Error Reporting
ASIF — Access Security Information Field
EPIC — Explicitly Parallel Instruction Computing
MPL — Multi-Schedule Private Line
FSK — Frequency Shift Keying
ANON FTP — Anonymous FTP
2PC — two-phase commit
SD — Sales and Distribution
MOSPF — Multicast Open Shortest Path First
PING — Packet Inter-Network Groper
P2MP — Point-To-Multipoint
MAPI — Messaging Application Program Interface
FEFO — First Ended, First Out
MTA — Message Transfer Agents (Internet)
ATX — Advanced Technology Extended [Intel]

EH&S — Environmental Health and Safety
CPAN — Comprehensive PERL Archive Network
BBCS — buffer-to-buffer credits
SBAS — Satellite-Based Augmentation System
DNS — Domain Name Server
CUPS — Common Unix Printing System
NAVSTAR — Navigation Satellite Timing & Ranging
DR — Disaster Recovery
INFOSEC — Information Security
CCSA — Common Control Switching Arrangement
IS-IS — Intermediate-System-to-Intermediate-System
RIP — Raster Image Processor
DITTO — Data Interfile Transfer, Testing and Operations
ADPCM — Adaptive Differential Pulse Code Modulation
NJE — Network Job Entry
DQM — Data Quality Manager
C4S — Command, Control, Communications, and Computer Systems
DMT — Discrete Multi-Tone
NEXT — Near-end Crosstalk
WDDM — Windows Display Driver Model
KTS — Key Telephone System
RMU — Rack Mount Unit
MSDU — MAC Service Data Unit
OWASP — Open Web Application Security Project
MTP — Message Transfer Part
CPANEL — control panel
UMA — Upper Memory Area
DPMS — Display Power Management Signaling
PID — Proportional, Integral, Derivative
SDR — Software-Defined Radio
HTTP — Hypertext Transport Protocol
CSECT — Control Section
MSC — Mobile Switching Center
HIDS — Host-based Intrusion Detection System
ODD — Optical Disk Drive
RTE — Real-Time Enterprise
PBM — Pharmacy Benefits Management (or Manager)
OVP — Online Video Platform
CAPI — Computer Assisted Personal Interview
FAW — Frame Alignment Word
NTCIP — National Transportation Communications for Intelligent Transportation System Protocol
LCOS — Liquid Crystal on Silicone
ATSC — Advanced Television Systems Committee
BTAG — Beginning Tag
APOP — Authenticated Post Office Protocol
EMOTICON — Emotion Icon
CCR — Continuity of Care Record
ETB — End of Transmission Block
SORBS — Spam and Open Relay Blocking System
NDIS — Network Driver Interface Specification (Microsoft Windows NT)

MSNP — Microsoft Notification Protocol
UTSL — Use The Source, Luke
WOSA — Windows Open Service Architecture
BPL — Broadband over power line
MSDN — Microsoft Developer Network
OOSE — Object Oriented Software Engineering
XRST — extended restart
ZINK — Zero Ink
ACDI — Asynchronous Communications Device Interface
DIFS — Distributed coordination function InterFrame Space
NUMA — Nonuniform Memory Access
ATCA — Advanced Telecom Computing Architecture
DMT — Discrete Multi-Tone Technology
LSR — Local Shared Resource
RIMM — RAMBUS In-Line Memory Module
SUT — System Under Test
SAS — Single Attachment Station
FEAL — Fast Data Encipherment Algorithm
NSLU2 — Network Storage Link for USB 2.0
EJB — Enterprise JavaBeans
VLAN — Virtual Lan Area Network
KMS — Key Management Server
COD — Connection Oriented Data
3GL — third-generation language
UNC — Universal Naming Convention
JOA — Joint Opportunity Assessment
ISUP — ISDN User Part
IOTP — Internet Open Trading Protocol
DKMS — Dynamic Kernel Module Support
DS — Differentiated Service
BIOD — Block Input/Output Daemon
CRJE — Conversational Remote Job Entry
EIST — Enhanced Intel SpeedStep Technology
BUS — Broadcast and Unknown Server
AVD — Alternate Voice Data
DCC — Data Country Code
QBL — Query By Example
KVM — K Virtual Machine
NAC — network adapter card
SAP — Service Advertising Protocol
SAX — Simple API for XML
CVC2 — Card Validation Code 2
KL — Key Length
1080I — 1080 interlaced
CMRR — common-mode rejection ratio
BDAM — Basic Direct Access Method
WBEM — Web-Based Enterprise Management
DLE — Data Link Escape
ESDI — Enhanced Small-Device Interface
DDS — Dataphone Digital Service (AT&T)

EPOW — Emergency Power Off Warning
BIW — Business Information Warehouse, SAP
ABLE — Agent Building and Learning Environment
CMDB — Configuration Management Database
IHV — Independent Hardware Vendor
EDRESS — e-mail address
MAU — Medium Attachment Unit
FEBE — Far End Block Error (SONET)
HSCSD — High-Speed Circuit-Switched Data
IPSEC — IP Security
L2F — Layer 2 Forwarding (Cisco)
LINAC — Linear Accelerator
ABM — activity-based management
ITCS — Intermodal Transport Control System
BASEL II — Basel Capital Accord
EPU — Energy Processing Unit
VAD — Voice Activity Detection
ZBR — Zero Bug Release
BONDING — Bandwidth On Demand Interoperability Group
FH — Frame Handler
LORAN — Long-Range Radio Navigation
ASCL — Asianet Satellite Communications Limited
DDN — Digital Data Network
HAE — Height Above Ellipsoid
WZC — Wireless Zero Configuration
DDI — DNS, DHCP & IP address
MO — Magneto-optic
RFT — Request for Technology
DARPA — Defense Advanced Research Program Agency
XRML — Extensible Rights Markup Language
CODASYL — COnference on DAta SYstems Languages
GBIC — GigaBit Interface Converter
ASBR — Autonomous System Boundary Router
CNAM — Caller ID with Name
PKCS — Public-Key Cryptography Standards
DFC — Distributed Coordination Function
UPC — Universal Product Code
STM — Synchronous Transport Module
PPM — pages per minute (a laser printer production rate metric)
CFM — Code Fragment Manager
GAMS — General Algebraic Modeling System
HDCP — High-bandwidth Digital Content Protection
ADSI — Active Directory Services Interface
CCR — Current Cell Rate (ATMF)
4G — 4th Generation
SODIMM — Small Outline Dual Inline Memory Module
ASP — Average Selling Price
RSA — Remote Supervisor Adapter
IPSE — Integrated Project Support Environment
CIC — Customer Interaction Center

WGA — Windows Genuine Advantage
IIS — Internet Information Server
BGI — Binary Gateway Interface
EZ — Excessive Zeros
ADI — Application Desktop Integrator
DEL — Delete
ICM — Incentive Compensation Management
MPIF — Multi-Processor Interconnect Facility
AS/400 — Application System/400
OTS — Off-the-Shelf/Over-the-Shoulder
SAML — Security Assertion Markup Language
WRED — Weighted Random Early Detection
APO — Advanced Planner Optimizer
ITRC — Information Technology Requirements Council
VAN — Value-Added Network
MDA — Model-Driven Architecture
OLTP — On-Line Transaction Processing
XFDL — Extensible Forms Description Language
BIDI — Bi-Directional
EAX — Environmental Audio Experience
XPATH — XML Path Language
AMANDA — Advanced Maryland Automatic Network Disk Archiver
PAL — Publication Access List
PDQ — Product Data Quality
RSA — Rivest, Shamir, & Adleman
APPN — Advanced Peer-to-Peer Network
ODF — OpenDocument Format
VOM — Volt-ohm-milliammeter
RSBAC — Rule Set Based Access Control
ARCNET — Attached Resource Computer Network
AVI — Audio/Video Interleaved Format
3DS — 3D Studio
DAM — Database Activity Monitoring
SOD — Service on Demand
LCGN — Logical Channel Group Number
NC — Network Computer (PC Internet)
JMS — Java Messaging Services
CTCP — Client-To-Client-Protocol
WOL — Wake On Lan's
BPC — Business Planning and Consolidation
VMDQ — Virtual Machine Device Queues
AIA — Application Integration Architecture
BCV — Business Continuous Volume
ZLE — Zero-Latency Enterprise
DRE — Document Rendering Engine
GUTBN — Globally Unique Time Based Number
CIK — crypto-ignition key
AL PA — Arbitrated Loop Physical Address
ADMD — Administration Management Domain
GDI — Graphics Device Interface

EAT — End-Around Test
ECTF — Enterprise Computer Telephony Forum
PCMCIA — People Can't Memorize Computer Industry Acronyms
QMS — Quality Micro Systems
NLQ — Near Letter Quality
D2D2T — disk-to-disk-to-tape
CLEC — Competitive Local Exchange Carrier
FEMA — Failure mode and effects analysis
ADTG — Advanced Data Table Gram
EXE — Executable
VLR — Visitor Location Register
SBL — Spamhaus Block List
DFI — DFI Inc. (Design for Innovation)
CEC — Commission of European Communities (see EC, EEC)
BPOS — Business Productivity Online Standard Suite
100BASET — 100 Mbps, baseband, unshielded twisted-pair
FGA/B/C/D — feature group A/B/C/D
BGAN — Broadband Global Area Network
EPR — Electronic Patient Record
DCB — Data Center Bridging
BCOCA — Bar Code Object Content Architecture
FSB — Frontside Bus
DRP — Distribution and Replication Protocol
HSF — High Sierra Format
AC97 — Audio CODEC 97
ALT — Contralto
NAP — Network Access Protection
GRC.SQ — Governance, Risk Management, Compliance, Security, and Data Quality
APWG — Anti-Phishing Working Group
CHARSET — character set
PLPA — Pageable Link Pack Area
CSD — Cisco Secure Desktop
CALS — Computer Aided Acquisition and Logistic Support
COAM — Customer Owned And Maintained
GLUT — OpenGL Utility Toolkit
OEP — Outlook Exchange Protocol
CPLD — Complex Programmable Logic Device
MSS — Mobile Satellite Service
BCEL — Byte Code Engineering Library
EDA — Event-Driven Architecture
DAS — Distributed Antenna System
IPR — Intellectual Property Right
GERAN — GSM(GPRS)/EDGE Radio Access Network
CVV2 — Card Verification Value 2
SQR — Security to Quality Defect Ratio
EHR — Electronic Health Record
TSOP — Thin Small-Outline Package
DDT — Disk-to-Disk-to-Tape
CMC — computer-mediated communication
OBDR — One Button Disaster Recovery

PMI — Portable Management Interface
RTT — round-trip time
GOSIP — Government Open System Interconnection Profile
CMIS — Common Management Information Service
LTRAN — local transaction
CCI — Carrier-to-Carrier Interface
DB9 — D sub-miniature 9
ITES — Information Technology Enabled Services
ERMS — electronic records management systems
TCAP — Transaction Capabilities Application Part
CASE — Computer-Aided Software Engineering
BMIC — Bus Master Interface Controller
EDIF — Electronic Design Interchange Format
BCS — Basic Content Services
OCTAVE — Operationally Critical Threat, Asset and Vulnerability Evaluation
DIF — Directory Interoperability Forum
CDPD — Cellular Digital Packet Data
4B5B — 4 Byte 5 Byte
OC — Overclock (Over Clock)
FOSS — Free and Open Source Software
IOS — International Operator Services
LOFS — Loopback File System
RR_TOV — resource recovery timeout value
CD-ROM — compact disc-read only memory
AFL — Academic Free License
E� — Electronic Entertainment Exposition
USRT — Universal Synchronous Receiver-Transmitter
ZDO — Zigbee Device Object
SYSVOL — System Volume
MGA — Monochrome Graphic Adapter
D/A — Digital/Analog
APPI — Advanced Peer-to-Peer Internetwork
AMIS — Audio Messaging Interchange Specification
ACT — Application Control Table
QSAM — Queued Sequential Access Method
MOREQ — Model Requirements for the Management of Electronic Records
SPM — Statistical Packet Multiplexing
IRMC — Integrated Remote Management Controller
IDOM — Integrated Document and Output Management
COBIT — Control Objectives for Information and related Technologies
SPE — Synergistic Processor Element
CGM — Consumer-Generated Media
CST — Computer Supported Telephony
BHMC — Busy Hour Minutes of Capacity
TCTTE — Terminal Control Table Terminal Entry
HERF — High Energy Radio Frequency
ZBTSI — Zero Byte Time Slot Interchange
ADS — Active Directory Service
SOH — Start Of Header
5ESS — class five (5) electronic switching system

LEAP — Lightweight Extensible Authentication Protocol
LIS — Laboratory Information System
10BASET — 10 Mbps, baseband, unshielded twisted-pair
CCHIT — Certification Commission for Health Information Technology
PINE — Program for Internet News and E-mail
AVVID — Architecture for Voice, Video and Integrated Data
LDCM — LANDesk Client Manager
DSU — Digital Service Unit
DME — Distributed Management Environment (OSF)
PSRAM — Pseudo SRAM
GETVIS — GET VIrtual Storage
LZ — Lempel-Ziv
CC — Closed Captioning
DUPS — Digital Unbundled Port Services
LUT — Look Up Table
KGD — Known Good Die
DOV — Data-Over-Voice
ETC — Enhanced Throughput Cellular protocol
ACH — Automated Clearinghouse
PWB — printed wire board
MBS — Maximum Burst Size (ATM)
OOPS — Object Oriented Programming System
URPF — Unicast Reverse Path Forwarding
NANP — North American Numbering Plan
PCL — Printer Control Language
LSM — Linux Software Map
SAA — Systems Application Architecture
DSL — Domain-Specific Language
10GFC — 10 Gigabit Fibre Channel
APDU — application-layer protocol data unit
RBOC — Regional Bell Operating Company (Baby Bell)
FORTRAN — FORmula TRANslator
AOL — America Online, Inc.
AGS — Advanced Graphics System
DEK — Data Encryption Key
BABT — British Approvals Board for Telecommunications
VT — Virtual Tributary (ATM)
UMTS — Universal Mobile Telecommunication System
GXS — Global Exchange Services
CAPA — CA Productivity Accelerator
KEYGEN — Key Generator
SAT NAV — Satellite navigation
ATL — Active Template Library
CPU — Call Pick Up
LVM — Low Voltage Differential Signaling
EGRP — Exterior Gateway Routing Protocol
DNA — Digital Network Architecture
MIC — Media Interface Connector (FDDI)
DAM — Digital Asset Management
ATTIS — AT&T Information Systems

EKTS — Electronic Key Telephone Set
ANS — Advanced Network Services
CSLIP — Compressed SLIP
CLUSRCVR — cluster-receiver channel
OSD — Open Software Description
CCNSO — Country Code Names Supporting Organization
3GIO — 3rd Generation Input Output
DS3 — Digital Signal Level 3
C/R — Command/Response Indicator or bit
OGSA — Open Grid Services Architecture
LQA — Link Quality Analysis
NRZI — Non-return to zero inverted
ICPP — Intel Channel Partner Program
BPON — Broadband Passive Optical Network (SBC)
USENET — USEr NETwork
HSI — Hue-Saturation-Intensity
HE-AAC — High-Efficiency Advanced Audio Coding
GIS — Generalized Information System
OTDR — Optical Time Domain Reflectometer
PDE — Possible Duplicate Emission
PL/SQL — Procedural Language/Structured Query Language
HGFS — Host-Guest File System
BDC — Backup Domain Controller
EIS — Enterprise Information System
CCS — Common Channel Signaling
CLUT — Color Lookup Table
GKS — Graphical Kernel System
FCD — Floating Car Data
NCCM — Network Configuration and Change Management
SNA — Social Network Analysis
TTR — Transactional Track Record
TPM — Trusted Platform Module
10BASE5 — 10 Mbps, baseband, 500 meter
ITLD — International Top-Level Domain
J2EE — Java 2 Platform, Enterprise Edition
RFI — remote failure indication
UNICODE — UNIversal CODE
ATB — All Trunks Busy
ESCON — Enterprise Systems Connection
CEA — Consumer Electronics Association
NO/NC — Normally Open/Normally Closed
SOS — Secure Object Store
ASO — Address Supporting Organization
GLONASS — Global Navigational Satellite System
SMDR — station message detail recording
NETAPP — Network Appliance Inc.
BOB — Business Object Broker
FOTS — Fiber-Optic Transmission System
CLLM — Consolidated Link Layer Management
SWIFT — Society for Worldwide Interbank Financial Telecommunication International Fund Transfer

IRU — Indefeasible Right Of Use
XMI — XML Metadata Interchange
MFM — Modified Frequency Modulation
MTBF — MeanTime Between Failures
HLL — High Level Language
IMEI — International Mobile Equipment Identifier
ACE — Agile Communication Environment
DSL — Direct Swift Link
DMAA — Discrete Mathematics, Algorithms and Applications
EPS — Events per Second
M2M — Manufacturer-to-Manufacturer
DSBM — Designated Subnet Bandwidth Manager
TSIG — Transaction Signature
WSFC — Windows Server Failover Clustering
LTPA — Lightweight Third Party Authentication
2PKDP — Two-Party Key Distribution Protocol
GXA — Global XML Web Services Architecture
EPR — Endpoint Reference
CLR — Cell Loss Ratio
FCIP — Fibre Channel over Internet Protocol
HIDAM — Hierarchical Indexed Direct Access Method
BOOT — BOOTstrap
UTF-8 — Unicode Transformation Format 8
PPRC — Peer-To-Peer Remote Copy
SALT — Speech Application Language Tag
XVT — eXtensible Virtual Toolkit
1G — First Generation
UC — Unified Communications
SDLT — Super Digital Linear Tape
DI/DO — Dispatch In/ Dispatch Out
ARPANET — Advance Research Projects Agency Network
NHRP — Next Hop Resolution Protocol (ATM)
LIC — Line Interface Computer
UNI — User-to-Network Interface (ATM)
GFORTRAN — GNU Fortran compiler
DFP — Data Facility Product
INTRALATA — intraLocal Access Transport Area
MAE — Metropolitan Area Exchange (Ethernet)
DRU — Disc Remastering Utility
KPO — Knowledge Processing Outsourcing
COES — Centers of Excellence in Women's Health
BIDS — Business Intelligence Development Studio
3P — Predictive, Proactive, and Preventive Philosophy
OS/2 — Operating System/2
GOW — God of War (Game)
CE ROUTER — Customer edge router
IP PBX — Internet Protocol private branch exchange
CBEMA — Computer and Business Equipment Manufacturers'Association
PMO — Project Management Office
SNIPS — System & Network Integrated Polling Software

ALET — Access List Entry Token
GIX — Global Internet Exchange
PCN — Personal Communications Networks (European PCS)
SS — Switching System
FOND — Font family descriptor
BTO — Business Technology Optimization
BTAC — Branch Target Address Cache
AVED — AntiVirus Emergency Discussion list
SWAT — Solutions with Advanced Technologies
CATS — Calling Card & Third Number Settlement
CEAP — cloud-enabled application platforms
SSD — Solid-state drives
ROR — Ruby on Rails
IOCA — Image Object Content Architecture
SNI — Subscriber Network Interface
CMS — Conversational Monitor System
CTD — Cell Transfer Delay (ATM)
VGF — Voice Grade Facility
QMF — Query Management Facility
MOF — Microsoft Operations Framework
FFPF — Fairly Fast Packet Filter
ADSTAR — Automated Document Storage And Retrieval
CB — C-Beautifier
INAP — Intelligent Network Application Protocol
DIX — Digital Intel Xerox
CDR — call detail recording
KTM — Kernel Transaction Manager
ARS — Automatic Route Selection
CHIPS — Clearing House Interbank Payments System
CNR — combat-net radio
ETSI — European Telecommunications Standard Institute
PARM — Patient relationship management
DFL — Design for Logistics
ECSA — Exchange Carriers Standards Association
LPP — Land Pre-Pits
STM-N — Synchronous Transport Module level n)
EAX — Environmental Audio Expansion
OSSIM — Open Source Security Information Management
ACE — Asynchronous Communications Element
ENQ — Enquiry Control Character
SIFS — Short InterFrame Space
CIDR — Classless Internet Domain Routing
CEPT — Conference on European Post & Telegraph
COFF — Common Object File Format
UNR — Ubuntu Netbook Remix
QFE — Quick Fix Engineering
LSASS — Local Security Authority Subsystem Service
LPR — Line Print
CROI — companywide ROI
CTI — computer-telephony integration

PRINCE — Projects In Controlled Environments
NAM — Number Assignment Module
SRV — Service Record
SAST — Static Application Security Testing
MLT — Mechanized Loop Test
RTSC — Read The Source Code
LDMF — Librarian Disc Master File
BCP — Bulk Copy Program
BOPS — Billions of Processes per Second
GDSN — Global Data Synchronization Network
ABME — Asynchronous Balanced Mode Extended
FDS — Fraud Detection System
ICIP — Inter-Carrier Interface Protocol
DSTN — Double-layer Supertwist Nematic. (in Passive-matrix LCD Technology)
CEI — Common Event Infrastructure
DXF — Drawing Interchange Format
LASINT — Laser Intelligence
EDC — Enterprise Database Connectivity
ATU-C — ADSL Transmission Unit, Central
GFID — General Format Identifier
PLC — Powerline Communication
TEC — Thermoelectric Cooler
NAB — Not A Bug
EHA — Ethernet Hardware Address (MAC address)
ETL — Extract, Transform and Load
LODA — Lombardi On-Demand Assistance
DARPA — Defense Advanced Research Project Agency
SUB — Substitute
ICI — Interexchange Carrier Interface
SBM — Subnet Bandwidth Manager
CDROM — Compact Disk ROM
SPHAIRON — Sphere, luminary, global and Elektron, Technology
IFIP — International Federation of Information Processing societies
GEAR — Gigabyte Enhanced Agp Riser
DLPI — Data Link Provider Interface
CNMA — Communication Network for Manufacturing Applications
LIOCS — Logical Input/Output Control System
DOMF — Distributed Object Management Facility
CBL — Composite Blocking List
GARP — Generic Address Resolution Protocol
RBL — Real-Time Block List
IDARS — Integrated Document Archive and Retrieval System
STS — Security Token Service
OPX — Off-Premise Extension
OTM — Oracle Transportation Management
KSAM — Keyed Sequential Access Method file
APOT — Alternate Point of Termination
LSAS — Local Security Authentication Server
BITS — Background Intelligent Transfer Service
DVCD — Double Video CD

DLCI — Data Linc Connection Identifier
HCI — Human-Computer Interaction
IMSSI — Inter-MAN Switching System Interface
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