D

D/A         Digital/Analog

DA          Desk Accessory

DAC         Digital Analog Converter

DAC         Dual Attachment Concentrator

DAI         Distributed Artificial Intelligence

DAM         Direct Access Method 

DAP         Directory Access Protocol

DAP         Document Application Profile

DARPA       Defense Advanced Research Projects Agency

DAS         Dual Attachment Station

DASD        Direct Access Storage Device

DAT         Digital Audio Tape

DAT         Dynamic Address Translation

DB          Database

DBCS        Double Byte Character Set

DBMS        DataBase Management System

DBRT        Directed Beam Refresh Terminal

DC          Data Cartridge

DC          Data Communication

DCA         Document Content Architecture

DCAF        Distributed Console Access Facility

DCB         Data Control Block

DCB         Disk Coprocessor Board

DCC         Diskette Controller Chip

DCE         Data Circuit terminating Equipment

DCE         Data Communications Equipment

DCE         Distributed Computing Environment

DCI         Display Control Interface

DCL         Digital Command Language

DCS         Desktop Color Separation

DCT         Destination Control Table

DCT         Discrete Cosine Transform

DD          Data Definition

DDCMP       Digital Data Communications Message Protocol

DDCS        Distributed Database Connecion Services/2

DDE         Dynamic Data Exchange

DDES        Digital Data Exchange Specifications

DDI         Device Driver Interface

DDK         Driver Development Kit

DDL         Data Definition Language

DDL         Document Description Language

DDM         Distributed Data Management

DDN         Defense Data Network

DDP         Distributed Data Processing

DDRM        Device driver interface/Driver kernel interface

            Reference Manual

DDS         Dataphone Digital Service 

DDS         Decision Support System

DECT        Digital European Cordless Telephone

DECUS       Digital Equipment Computer Users Society

DEL         Delete

DES         Data Encryption Standard

DF          Direction Flag

DFC         Distributed Coordination Function

DFDSS       Data Facility Data Set Services

DFHSM       Data Facility Hierarchical Storage Manager

DFP         Data Facility Product

DFR         Document Filing and Retrival

DFS         Distributed File System

DFSMS       Data Facility Storage Management Subsystem

DFSORT      Data Facility Sort

DFT         Distributed Function Terminal

DFWMAC      Distributed Foundation Wireless Media Access Control

DHCP        Dynamic Host Configuration Protocol

DHTML       Dynamic HTML

DIA         Document Interchange Architecture

DIB         Data Input Bus

DIB         Device Independent Bitmap

DIFS        Distributed coordination function InterFrame Space

DIMM        Dual Inline Memory Module

DIP         Dual Inline Package

DIS         Draft International Standard

DISSOS      Distributed Office Support System

DIT         Directory Information Tree

DKI         Driver Kernel Interface

DL          Data Length

DL          Directory Listing

DL/1        Data Language 1

DLBL        Disk Label

DLCI        Data Linc Connection Identifier

DLE         Data Link Escape

DLL         Dynamic Link Library

DLS         Device Level Selection

DLSE        Device Level Selection Enhanced

DLSw        Data Link Switching

DLUR        Dependent LU Requester

DLUR/S      Dependent LU Requester / Server

DLUS        Dependent LU Server

DMA         Direct Memory Access

DMCI        Direct Memory Communications Interface

DMD         Directory Management Domain

DMI         Digital Multiplexed Interface

DML         Data(base) Manipulation Language

DMNL        Direct Multi Network Link

DMP         Dot Matrix Printer

DN          Distinguished Name

DNA         Digital Network Architecture

DNS         Domain Name Service

DOC         Display Operator Console

DOE         Distributed Objects Everywhere

DOMF        Distributed Object Management Facility

DOS         Declaration Of Support

DOS         Disk Operating System

DOS/VS      Disk Operating System / Virtual Storage

DOS/VSE     Disk Operating System / Virtual Storage Extended

DP          Data Processing

DP          Draft Proposal

DPA         Document Printing Application

DPF         Data Private Facility

DPI         Dots Per Inch

DPL         Descriptor Privilege Level

DPMS        Display Power Management Signaling

DPS         Dynamic Path Selection

DQDB        Distributed Queue Dual Bus

DRAM        Dynamic Random Access Memory

DRQ         Data ReQuest

DS          Digit Select

DS          Directory System

DSA         Directory System Agent

DSA         Distributed Systems Architecture

DSA         Dynamic Storage Area

DSF         Device Support Facility

DSL         Direct Swift Link

DSN         DataSetName

DSN         Distributed Systems Network

DSNL        Direct Swift Network Link

DSOM        Distributed System Object Model

DSP         Digital Signal Processor

DSP         Directory System Protocol

DSR         Data Set Ready

DSSI        Digital Storage Systems Interconnect

DSU         Data Service Unit

DTAM        Document Transfer, Access and Manipulation

DTD         Document Type Definition

DTE         Data Terminal Equipment

DTI         Department of Trade and Industry (UK)

DTP         DeskTop Publishing

DTR         Data Terminal Ready

DU          Data Unit

DUA         Directory User Agent

DUN         Dispatch Unit Number

DVI         Digital Video Interface

DVST        Direct View Bistable Storage

DXI         Data eXchange Interface