dB Decibel
DB Data Base + Data Buffer + Device Bay
dBA Adjusted Decibel
DBC Device Bay Controller
DBCS Delivery Bar Code Sorter + Double-Byte Character Set
.DBF Database (file name extension)
DBIS Dun & Bradstreet Information Services
DBM Data Base Manager
DBMS Data Base Management System
DBR DOS Boot Record
DBS Data Base Server +
Direct (to home) Broadcast (satellite) System
DBV Digital Broadcast Video
DB2 Database 2
DC Data Collection + Data Communication + Data Control +
Device Control + Direct Current
D2C Decimal To Character [REXX]
DCA Digital Communications Associates +
document Content Architecture [IBM]
DCAF Distributed Console Access Facility [IBM]
DCAM Digital Camera + Direct Chip Attach Module
DCB Device Control Block + Disk Coprocessor Board [Novell]
DCC Data Country Code + Digital Command Control +
Digital Compact Cassette + Direct Cable/Client Connection
+ Display Combination Code
DCD Data Carrier Detect
DCE Data Circuit-Terminating Equipment +
Data Communications Equipment +
Distributed Computing Environment [OSF] +
Distributed Computing Equipment
DCED Distributed Computing Environment Daemon
DCF Data Communication Facility [IBM] +
Data Compression Facility +
Data Count Field [IBM] +
Driver Configuration File [Lotus]
D-CHANNEL Data Channel
DCI Display Control Interface
DCL Data Control Language + Declaration +
DEC Command Language [DEC] +
Device Clear + Digital Control Logic +
Digital Command Language [Digital]
DCOM Distributed Component Object Model
DCP Digital Light Processing [TI]
DCS Data Collection System + Data Control System +
Desk Color Separation + Distributed Control System
DCT Discrete Cosine Transform
.DCT Dictionary (file name extension)
DCU Data-Cache Unit
DD Day + Digital Display + Double Density
DDA Distributed Data Access + Domain-Defined Attribute
DDB Device Dependent Bitmap + Device Descriptor Block
DDC Digital Data Channel [VESA] + Display Data Channel
DDCMP Digital Data Communications Message Protocol [DEC]
DDC1 Display Data Channel One
DDCS Distributed Database Connection Services [IBM]
DDD Data Definition Language + Direct Distance Dialing
DDE Direct Data Entry + Dynamic Data Exchange [Microsoft]
DDEML Dynamic Data Exchange Manager Library [Microsoft]
DDF Display Data Channel + Dynamic Data Formatting [IBM]
DDI Device Driver Interface +
Digital document Interchange + Direct Dial In
DDK Device Driver Kit [Microsoft Windows]
DDL Data Definition Language + Data Description Language
DDM Distributed Data Management
DDN Defense Data Network
DDNS Dynamic Domain Naming System
DDP Datagram Delivery Protocol +
Distributed Data Processing
DDR Dynamic document Review [Symantec]
DDR-SDRAM Double Data Rate-SDRAM
DDS Data Description Specification +
Digital Dataphone Service [AT&T] + Design Data Sheet +
Digital Data Storage + Distributed Database Services
DDX Digital Data Exchange
DE Device End
DEA Data Encryption Algorithm
DEC Decrement + Device Clear + Digital Equipment Corporation
DECNET Digital Equipment Corporation Networking (protocol)
DEF Desk Functional Equivalent [Compaq]
.DEF Definitions + Defaults (file name extensions)
DEFRAG Defragment
DEK Data Encryption Key
DEL Delete
DELSTR Delete String [REXX]
.DEM Demonstration (file name extension)
DEN document Enabled Networking [Novell-Xerox]
DER Distinguished Encoding Rules
DES Data Encryption Standard + Data Entry Sheet
.DES Description (file name extension)
DET Device Execute Trigger
DEV Device
DF Data Field + Destination Field + Device Flag +
Double Flag
DFC Data Flow Control
DFDR Digital Flight Data Recorder
DFM Design For Manufacturability [IBM]
DFP Digital Flat Panel
DFS Distributed File System
DFSMS Data Facility Storage Management Subsystem [IBM]
DFT Design For Testability + Diagnostic Function Test +
Discrete Fourier Transform +
Distributed Function Terminal
DFU Data File Utility
DGIS Direct Graphics Interface Standard
DHCP Dynamic Host Configuration Protocol
DHL Dynamic Head Loading
.DHP Dr. Halo PIC (file name extension)
DHTML Dynamic HTML
DI Data In + Destination Index
DIA document Interchange Architecture [IBM]
DIB Device Independent Bitmap +
Directory Information Base +
Dual Independent Bus [Intel]
DIBOL DEC Business Oriented Language
.DIC Dictionary (file name extension)
DID Direct Inward Dialing
DIDS Distributed Intrusion Detection System
DIF Data Interchange Format
DIFFSENS Differential Sense
DIIP Direct Interrupt Identification Port
DIMM Dual In-Line Memory Module
DIN Deutsche Industrie Norm (German equivalent of EIA)
DIO Data Input-Output
DIP Dialup Internet Protocol [Internet] +
Digital Imaging Processing +
Dual In-line Package + Dual In-line Pin
DIR Directory (file)
DIS Draft International Standard +
Dynamic Impedance Stabilization [CompuCom]
DISA Data Interchange Standards Association +
Direct Inward System Access
DISP Displacement (offset)
DIT Directory Information Tree
DIV Divide
DIVE Direct Interface Video Extension [OS/2 Warp]
DIVX Digital Video Express
DIW D-Inside Wire [AT&T]
.DIZ Description In Zip (file name extension)
DL Download (also D/L)
DL/1 Data Manipulation Language 1 [IBM]
DLC Data Link Control (protocol) [IBM] +
Distributed Loop Carrier
DLCI Data Link Connection Identifier
DLD Display List Driver
DLE Data Link Escape
DLL Dynamic Link Library
DLM Distributed Lock Manager + Dynamic Link Module
DLP Digital Light Processing [TI]
DLR DOS LAN Requester
DLS Data Link Switching [IBM]
DLT Digital Linear Tape
DM Distributed Memory
DMA Direct Memory Access/Addressing +
document Management Alliance
DMAC DMA Controller
DMACS Distributed Manufacturing Automation & Control Software
DMD Digital Micromirror Device [TI]
DME Direct Memory Execution +
Distributed Management Environment
DMF Distribution Media Format [Microsoft]
DMI Desk Management Interface
DML Data Manipulation Language
DMM Digital Multimeter
DMMS Dynamic Memory Management System
DMOS Double-diffused Metal-Oxide Semiconductor
DMP Dot Matrix Printer
DMPC Distributed Memory Parallel Computer
DMPP Distributed Memory Parallel Processor
DMQS Display Mode Query and Set [IBM]
DMS Data Management Software + Data/document
Management System
DMSD Digital Multistandard Decoding
DMSS Distributed Mass Storage System
DMT Digital/Discrete Multi-Tone
DMTF Desk Management Task Force
DMY Day Month Year
DN Down
DNC Direct Numerical Control
DNIC Data Network Identification Code
DNIS Dialed Number Identification Service
DNS Domain Naming System
DO Data Out + Distributed Objects
.DOC document + documentation (file name extensions)
DOCSV Data Over Circuit-Switched Voice
DOE Distributed Objects Everywhere
DOIP Dial Other Internet Providers [IBM]
DO-IT Disabilities, Opportunities, Internetworking and
Technology
DOM document Object Model
DOMF Distributed Object Management Facility
DOS Disk Operating System
DOSEM DOS Emulation
DOV Data Over Voice
DOW Day Of Week
DP Data Processing
DPA Demand Protocol Architecture [3Com] +
document Printing Architecture
DPAM Demand Priority Access Method
DPAREN Data Parity Enable [IBM]
DPB Drive Parameter Block
DPC Direct Program Control
DPI Distributed Protocol Interface + Dots Per Inch
DPL Descriptor Privilege Level
DPM Digital Panel Meter
DPMA Data Processing Management Association
DPMI DOS Protected Mode Interface [Microsoft]
DPMS Display Power Management Support
DPO Data Phase Optimization
DPS document Processing System
DPSK Differential Phase Shift Keying
DPtoTP Display Coordinates to Tablet Coordinates
(converting)
DQDB Distributed Queue Dual Bus
DQL Data Query Language
DR Data Received
D/R Direct or Reverse
DRAM Dynamic Random Access Memory
DRAW Direct Read After Write
DR.BOND Dial-up Router Bandwidth On Demand [NEC]
DRDA Distributed Relational Database
Algorithm/Architecture [IBM]
DR-DOS Digital Research-Disk Operating System
DRDW Direct Read During Write
DRI Digital Research Incorporated
DRM Distributed Resource Management
DRO Data Request Output + Destructive Read-Out
DRS document Registration System
.DRS Driver Resource (file name extension) [WordPerfect]
DRV Drive
.DRV Device Driver (file name extension) (Also see .DVR)
.DRW Draw + Drawing (file name extensions)
DS Data Segment + Data Send + Data Server + Double Sided
D/S Dhrystone Per Second
DSA Digital Signature Algorithm + Directory System Agent
DSAP Destination Service Access Point
DSD Direct Stream Digital [Sony-Philips]
DSDD Double Sided, Double Density (diskette)
DSE Data Storage Equipment
DSEA Display Station Emulation Adapter
DSECT Dummy Control Section
DSHD Double Sided, High Density (diskette)
DSIS Distributed Support Information Standard
DSL Digital Subscriber Line +
Dynamic Simulation Language
DSLAM Digital Subscriber Line Access Multiplexer
DSM Distributed Shared Memory
DSMA Digital Sense Multiple Access
DSN Delivery Service Notification
DSOM Distributed System Object Model
DSP Digital Signal Processing/Processor +
Directory Synchronization Protocol [Lotus]
DSPT Display Station Pass-Thru [IBM]
DSQD Double Sided, Quad Density (diskette)
DSR Data Set Ready + Device Status Register +
Device Status Report
DSS Decision Support System + Digital Signature Standard +
Direct Station Selector
DSSI Digital Standard Systems Interconnect [DEC]
DSSS Direct-Sequencing Spread Spectrum
DSSSL document Style Semantics and Specifications Language
DSTN Double Supertwisted Nematic
DSU Data Service/Switching Unit + Digital Service Unit
DSVD Digital Simultaneous Voice and Data
DSW Data Status Word + Device Status Word
DSX Digital Signals Cross-Connect
D2T2 Dye Diffusion Thermal Transfer (printing)
DTA Disk Transfer Area
.DTA Data (file name extension)
DTC Desk Conferencing
DTD document Type Definition
DTE Data Terminal Equipment + Dumb Terminal Emulator
DTF Distributed Test Facility
DTL Dialogue Tag Language [IBM] + Diode-Transistor Logic
DTM Digital Terrain Mapping
DTMF Data Tone Multiple Frequency + Dual Tone Multifrequency
DTP Desk Publishing + Distributed Transaction Process
DTR Data Terminal Ready + Data Transfer Rate
DTSS Dartmouth Time Sharing System
DTV Desk Video + Digital Television
DTVC Desk Video Conferencing
DU Disk Usage
DUA Directory User Agent
DUAT Direct User Access Terminal
DUN Dial-Up Networking [Microsoft]
DUNCE Dial Up Network Connection Enhancement
DV Digital Video
.DV DESQview script (file name extension)
DVC Desk Video Conferencing + Digital Video Camera
DVD Digital Video Disk
DVD-R Digital Video Disk-Recordable
DVD-RAM Digital Versatile Disc-RAM
DVD-ROM Digital Versatile Disc-ROM
DVE Digital Video Effect
DVI Digital Video Interactive + Digital Visual Interface
.DVI Device Independent (file name extension)
DVM Digital Volt Meter
DVMRP Distance Vector Multicast Routing Protocol [Internet]
DVR Digital Video Recorder
.DVR Device Driver (file name extension) (Also see .DRV)
DW Data Warehousing
DWDM Dense Wavelength Division Multiplexer
DWG Drawing
DWMT Discrete Wavelet Multitone
D2X Decimal To Hexadecimal [REXX]
.DXB Drawing Interchange Binary (file name extension)
[AutoCAD]
DXC Data Exchange Control
DXF Drawing Exchange Format
DXI Data Exchange Interface
DYNSRC Dynamic Source
E...
EA Effective Address + Extended Attribute [OS/2]
EAR External Access Register
EARN European Academic Research Network
EAROM Electrically Alterable Read Only Memory
EARS Electronic Access to Reference Services +
Electronic Authoring and Routing System [DEC] +
Explicit Archive and Retrieval System [Langley Research]
EATA Enhanced AT Bus Attachment
EAX Environmental Audio Extensions [Creative]
EB Exabyte (1,024 petabytes)
(One Billion Billion characters of information)
EBC EISA Bus Controller
EBCT Electron Beam Computed Tomography
EBCDIC Extended Binary Coded Decimal Interchange Code [IBM]
EBI Equivalent Background Input +
Extended Background Investigation
EBNF Extended Backus-Naur Form
EBT Electronic Benefits Transfer
EC Electronic Commerce + Error Control
ECAL Enjoy Computing And Learn
ECAT Electronic Card Assembly and Test [IBM]
ECB Electronic Codebook + Event Control Block
ECC Elliptic Curve Crypto + Error Check Code +
Error Checking and Correction + Error Correction Code
ECD Enhanced Color Display + Enhanced Compact Disk
ECHO European Commission Host Organization [Internet]
ECI External Call Interface
ECL Emitter Coupled Logic
ECM Electronic Control Module
ECMA European Computer Manufacturers Association
ECNE Enterprise Certified NetWare Engineer [Novell]
ECP Enhanced/Extended Capabilities Port [Microsoft]
ECS Enhanced Chip Set
ECTL Electronic Communal Temporal Lobe
ECU EISA Configuration Utility
ED Erase Display
EDA Electronic Design Automation +
Embedded document Architecture [Go Corporation]
EDB Embedded Database
EDC Electronic Digital Computer +
Enhanced Data Correction +
Error Detection and Correction
EDDC Extended Distance Data Cable
EDE Encrypt-Decrypt-Encrypt
EDGAR Electronic Data Gathering, Analysis and Retrieval
EDI Electronic Data Interchange +
Electronic document Interchange [DEC]
EDIF Electronic Design Interchange Format
EDIFACT EDI for Administration Commerce and Transport
EDL Edit Decision List
EDLC Ethernet Data Link Control
EDLIN Editor (Line Text)
EDMS Electronic document Management System
EDO Extended Data Out
EDOS Enhanced DOS for Windows
EDP Electronic Data Processing
EDPM Electronic Data Processing Machine
EDRAM Eraseable/Extended Dynamic Random Access Memory
EDS Electronic Data Systems (corporation)
EDSAC * Electronic Delay Storage Automatic Computer
.EDU Educational Institutions (Domain Name) [Internet]
EDVAC * Electronic Discrete Variable Automatic Computer
(First stored-program digital computer)
EE Extended Edition [IBM]
EEC Extended Error Correction
EEG Electroencephalogram
EEL Epsilon Extension Language
EEM Extended Memory Management
EEMAC Electrical & Electronic Manufacturers of Canada
EEMS Enhanced Expanded Memory Specification
EEPROM Electrically Erasable Programmable Read-Only Memory
EES Escrow Encryption Standard
EFA Extended File Attribute
EFF Electronic Frontier Foundation
EFI Electromechanical Frequency Interference +
Electronics For Imaging
EFIGS English, French, Italian, German, Spanish
EFL Emitter Follower Logic
E-FORM Electronic Form
EFS Encrypting File System
EFTS Electronic Funds Transfer System
EGA Enhanced Graphics Adapter
EGP Exterior Gateway Protocol
EGREP Extended Global Regular Expression Print [Unix]
EHLLAPI Emulator High Level Language Application
Programming Interface [IBM]
EIA Electronic Industries Association
EIDE Enhanced Integrated Drive Electronics
EIS Executive Information System
EISA Extended Industry Standard Architecture
EJB Enterprise JavaBeans
EL Electroluminescent (display) + Erase Line
ELAN Emulated Local Area Network
ELC Embedded Linking and Control
ELF Executable and Linking Format +
Extremely Low Frequency
ELS Entry Level System
EM Electronic Mail + Emphasized + End of Medium +
Expanded Memory
EMA Electronic Mail Association +
Enterprise Management Architecture
EMACS Editing Macros [Unix]
E-MAIL Electronic Mail
EMB Extended Memory Block [LIM/AST]
EMBARC Electronic Mail Broadcast to a Roaming Computer
[Motorola]
EMC Electromagnetic Compatibility + Enhanced Memory Chip +
E-Mail Connection + Extended Math Coprocessor
EMCC * Eckert-Mauchly Computer Company (World's first computer
company, founded by Presper Eckart and John Mauchly,
who invented and built the first UNIVAC)
EMI Electromagnetic Interference
.EML Electronic Mail (file name extension)
EMM Expanded Memory Manager
EMR Electro-Magnetic Radiation +
Enhanced Metafile Record
EMS Electronic Mail System + Electronic Message Service +
Expanded Memory Specification [LIM]
EMSAPI Extended Messaging Services Application
Programming Interface
EMWAC European Microsoft Windows NT Academic Centre
.ENC Encoded (file name extension)
ENDEC Encoder/Decoder
ENDS Ends Segment
ENIAC * Electronic Numerical Integrator Analyzer and
Computer (First fully electronic digital computer)
ENQ Enquiry
ENSS Exterior Nodal Switching Subsystem [Internet]
EOA End Of Address
EOB End Of Block
EOC End Of Conversion
EOF End Of File + Enterprise Objects Framework
[Next Computer]
EOI End Of Interrupt + End Or Identify
EOJ End Of Job
EOL End Of Line + End Of List
EOM End Of Message
EOR Exclusive OR (Also XOR)
EOS Earth Observing System [NASA] + End Of String
EOSDIS Earth Observing System Data and Information System [NASA]
EOT End Of Table + End Of Tape (marker) + End Of Text +
End Of Transmission
EP Electrophotographic Engine
EPIC Explicitly Parallel Instruction Computing
EPL Effective Privilege Level
EPLD Electrically Programmable Logic Device
EPM Enhanced Editor for Presentation Manager [IBM] +
Enterprise Process Management [IBM]
EPP Enhanced Parallel Port
EPROCESS Executive Process
EPROM Electrically Programmable Read Only Memory +
Erasable Programmable Read Only Memory
.EPS Encapsulated Postscript (file name extension)
EPSF Encapsulated Postscript Files
ERA Extended Registry Attributes
ERAS Electronic Routing and Approval System [Hughes Aircraft]
ERD Emergency Repair Disk
ERIC Educational Resources Information Center [Internet]
ERLL Enhanced Run Length Limited
ERMA * Electronic Recording Method, Accounting
[General Electric]
EROM Erasable Read Only Memory
EROS Earth Resources Observation System
[U.S. Geological Survey]
ERP Enterprise Resource Planning
ERR Error
ER/RC Extended Result/Response Code
ERU Emergency Recovery Utility [Microsoft]
ES Extra Segment
ESA Enterprise Systems Architecture [IBM] +
European Space Agency
ESC EISA System Component + Escape
ESCD Extended System Configuration Data
ESCM Extended Services Communications Manager [IBM]
ESCON Enterprise System Connection (Architecture) [IBM]
ESC/P Epson Standard Code for Printers
ESD Electronic Software Distribution +
Electrostatic Discharge
ESDI Enhanced Small/System Device Interface
ESDRAM Enhanced SDRAM
ESF Extended Superframe
ESI End System Identifier +
Enhanced Serial Interface (specification) [Hayes]
ESMR Enhanced Specialized Mobile Radio
ESN Electronic Security Number
ESP Emulation Sensing Processor +
Encapsulating Security Payload (header) +
Enhanced Serial Port [Hayes] + Enhanced Service Provider +
Estimated Selling Price
ESR Event Service Routine
ESS Electronic Switching System
ESU Electro-Static Unit
ET Enhancement Technology
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