• D-R Disconnect and Reconnect
• DAC Digital to Analog Controller
• DAD Desktop Application Director
• DAEMON Disk And Execution MONitor
• DAL Data Access Language
• DAP Data Access Protocol
• DARPA Defense Advanced Research Projects Agency
• DAT Digital Audio Tape / Duplicate Address Test
• DB Destroy Button
• DBA DataBase Administrator
• DBMS DataBase Management System
• DC Direct Current
• DCA Defense Communications Agency
• DCC Direct Cable Connection
• DCD Data Carrier Detect
• DCE Data Communications Equipment / Data Circuit-Terminating Equipment / Device-Control Entries / Distributed Computing Environment
• DCI Display Control Interface
• DCL Delphi Component Library
• DCU Delphi Compiled Unit
• DDA Digital Differential Analyzer
• DDB Device Descriptor Block
• DDC Display Data Channel
• DDCMP Digital Data Communications Message Protocol
• DDE Dynamic Data Exchange
• DDK Device Driver Kit
• DDN Defense Data Network
• DDP Datagram Delivery Protocol
• DDS Digital Data Standard / Digital Data Storage
• DEC Digital Equipment Corporation
• DECmcc DEC management control center
• DEK Data Encryption Key
• DEMPR DEC MultiPort Repeater
• DEN Document-Enabled Network
• DES Data Encryption Standard
• DG Data General
• DI Disable Item
• DIB Device Independent Bitmap
• DID Direct Inward Dial
• DIF Data Interchange Format
• DIP Document Insert Protocol
• DIP Dual In-line Package
• DIX Digital, Intel and Xerox
• DL Data Link
• DLC Data Link Control
• DLCI Data Link Connection Identifier
• DLL Dynamic Link Library
• DLT Digital Linear Tape
• DMA Direct Memory Access
• DMI Desktop Management Interface
• DMT Delphi Menu Template
• DNS Domain Name System
• DOJ Department Of Justice
• dot document template
• DP Dial Pulse
• DPA Demand Protocol Architecture
• DPL Descriptor Privilege Level
• DPMI DOS Protected Mode Interface
• DPP Distributed Parallel Processing
• DPR Delphi PRoject
• DPT Distributed Processing Technology
• DQDB Distributed Queue Dual Bus
• DR-DOS Digital Research Disk Operating System
• DRAM Dynamic Random Access Memory
• DRDA Distributed Relational Database Architecture
• DRP DECnet Routing Protocol
• DS0 Digital Signal Level 0
• DS1 Digital Signal Level 1
• DS3 Digital Signal Level 3
• DSA Directory System Agent
• DSAP Destination Service Access Point
• DSM Distributed System Management
• DSOM Distributable System Object Model
• DSP Digital Signal Processor / Domain Specific Point
• DSR Data Set Ready
• DSSS Direct Sequence Spread Spectrum
• DSTN Dual-Scan Twisted Nematic
• DSU Data Service Unit
• DSU/CSU Data Service Unit/Channel Service Unit
• DTD Document Type Definition
• DTE Data Terminal Equipment
• DTP DeskTop Publishing
• DTR Data Transmit Ready / Data Terminal Ready
• DTSX Data Transport Station for X.25
• DUA Directory User Agent
• DVI Digital Video Interactive
• DXF Drawing EXchange Format
• PI Dots Per Inch