D; DAA; DAC; DACAPO; DACNOS; D/A converter; DACTL; DADS; daemon; DAG; Daisy; DAISY 201; daisy chain; daisywheel printer; dangling pointer; DANTE; DAP Fortran; DAPLEX; DARE; dark-side hacker; Darms; DARPA; Dartmouth BASIC; Darwin; DAS; DASD; DASE; DASL; DAT; data; data abstraction; Data Address Generator; database; database administrator; database machine; database management system; database manager; database normalisation; database query language; database server; Data/BASIC; DATABUS; data bus; data channel; DATACODE I; Datacom; Data Communication Equipment; Data Communications Equipment; data compression; Data definition language; data dictionary; data dictionary file; data driven; Data Driven Machine; Data Encryption Algorithm; Data Encryption Key; Data Encryption Standard; data flow; data flow analysis; Data Flow Diagram; data fork; data frame; Data General; Data General mN601; data glove; datagram; data hierarchy; Data Interchange Standards Association; Data Jack; Datakit; Data Link Connection Identifier; data link layer; data link level; Data Link Provider Interface; Data Management Language; Data Manipulation Language; data mart; Datamation; data mining; data model; data modeling; data modelling; Data Over Cable Service Interface Specification; Data Over Cable Systems Interface Specifications; data packet; Dataparallel-C; Data Parallel Haskell; data path; Dataphone Digital Service; data processing; data rate; data service unit; data set; data set organization; Datastorm Technologies, Inc.; data striping; Data Structures Language; Data Terminal Equipment; Data Terminal Ready; DATA-TEXT; data transfer rate; DATATRIEVE; data type; DataViews; DataVis; data warehouse; data warehousing; date; DAU; daughter; David Turner; day mode; DAZIX; DB; DB2; DB-25; DBA; dBASE; DBC; DBCS; dBFAST; DBH; DBMS; DBPL; DBRI; dBXL; DC; DC1; DC2; DC3; DC4; DCA; DCALGOL; DCC; DCDL; DCE; DCG; DCI; DCL; DCOM; DCP; D. C. Power Lab; DCS; DCT; DD; dd; DDB; DDCMP; DDE; DDE Manager; DDIF; DDL; DDM; DDN; DDO; DDP; DDR-RAM; DDR-SDRAM; DDS; DDT; de; DE-9; DEA; DEACON; dead; DEADBEEF; dead code; deadlock; deadly embrace; dead tree; dead tree edition; deamon; death code; Death Star; deb; Debbugs; Debian; Debian GNU/Hurd; Debian GNU/Linux; debianize; deboursification; De Bruijn graph; De Bruijn notation; DEBUG; debugging; DEC; dec; DEC Alpha; decay; DECdesign; DECdns; DEChead; dechunker; decidability; decidable; decimal point; decision problem; decision support; decision support database; Decision Support Systems; decision theory; deckle; declarative language; DECmate I; DECnet; Decomposed Petri Net; decompress; decryption; DECstation; DECT; DECtape; DECUS; Decus cpp; DEC Wars; DECwindows; DECwrite; DED; dedicated line; deductive database; deductive tableau; Deep Blue; deep hack mode; deep magic; deep space; de facto standard; default route; defect; defect analysis; defect density; Defense Advanced Research Project Agency; Defense Advanced Research Projects Agency; Defense Communications Agency; Defense Data Network; Defense Data Network Network Information Center; Defense Information Systems Agency; Defense Trade Regulations; deferral; definite clause; definite sentence; definitional constraint programming; deflate; deflate compression; deflate/inflate compression; deforestation; defrag; defragment; defunct process; degree; degrees of freedom; dehose; DEK; Delaunay triangulation; delayed control-transfer; delay instruction; delay slot; delete; delimiter; delint; Delirium; Delivered Source Instruction; Dell Computer Corporation; Delphi; Delphi Technique; Delta; delta; Delta-4; delta conversion; Delta-Prolog; delta reduction; DELTASE; demand driven; demand paged; demand paging; DeMarco; DeMarco/Yourdon; demented; Demeter; demigod; De-Militarised Zone; demo; demodulate; demodulation; demo mode; demon; Demon Internet Ltd.; DeMorgan's theorem; demo version; Denis Howe; Dennis Ritchie; denotational semantics; Denotational Semantics Language; Department of Defense; Department of Defense Network; depeditate; dependability; dependable software; deprecated; depth-first search; DER; dereference; de-rezz; derived class; derived type; DES; descender; descent function; Descriptive Intermediate Attributed Notation for Ada; Descriptive Top-Level Specification; descriptor; design; Design In Real Time; design pattern; design recovery; Design System language; desk check; desktop database; Desktop Management Interface; Desktop Management Task Force; desktop manager; desktop publishing; DESQview; destructor; DESY; DETAB; deterministic; deterministic automaton; DETOL; developer; development; Developmental Test and Evaluation; development environment; device; Device Control; Device Control 1; Device Control 2; Device Control 3; Device Control 4; device driver; device independent bitmap; Devil Book; devo; DEX; DFA; DFC; DFD; DFS; DFT; DGL; DG/L; DHCP; Dhrystone; DHSD; DHTML; DIALOG; dialup; DIAMAG; diameter; Diamond; DIANA; DIB; DIBOL; dickless workstation; Dick Size War; DICOM; Dictionary APL; dictionary flame; Dictionary of Algorithms and Data Structures; Dictionary of Computing; DID; diddle; Didot point; die; die horribly; diff; Difference Engine; difference equation; differential; differential driver; differential line; Diffie-Hellman; digerati; digest; Digex; DigiCash; Digicom; digirati; digit; Digital; digital; digital audio; Digital Audio Tape; digital camera; digital carrier; digital computer; digital dashboard; Digital Data Service; Digital Enhanced Cordless Telecommunications; digital envelope; Digital Equipment Computer Users Society; Digital Equipment Corporation; Digital Equipment Corporation Network; Digital European Cordless Telecommunications; Digital Express Group, Inc.; Digital Lempel Ziv 1; Digital Library Initiative; Digital Linear Tape; Digital Multimeter; Digital Radio Mondiale; Digital Research; digital service unit; Digital Signal Processing; Digital Signal Processing Language; digital signature; digital signatures; Digital Signature Standard; Digital Simulation Language; Digital Simultaneous Voice and Data; DIGITAL Standard MUMPS; Digital Subscriber Line; Digital Subscriber Line Access Module; Digital Subscriber Loop; Digital Switched Network; Digital to Analog Converter; Digital Versatile Disc; Digital Video Disc; Dijkstra's guarded command language; dike; DIL; Dilbert; Dilberted; DIM; DIMATE; DIMM; DIM statement; DIN; DIN-8; ding; Dining Philosophers Problem; dink; DinnerBell; DINO; dinosaur; dinosaur pen; dinosaurs mating; diode; Diophantine equation; DIP; diplex; Direct-Access Storage Device; Direct Client to Client Protocol; Direct Connection; directed acyclic graph; directed graph; Directed Oc; directed set; Direct Inward Dialing; directional coupler; Directly Executable Test Oriented Language; direct mapped cache; Direct Memory Access; directory; Directory Access Protocol; directory service; Directory System Agent; Directory User Agent; DirectX; Dirt; dirtball; dirty power; DISA; disc; disc drive; disclaimer; disconnect; Discordianism; discrete cosine transform; discrete Fourier transform; discrete preorder; discriminated union; discussion group; Disiple; disjoint union; Disjunctive Normal Form; disk; disk controller; disk drive; disk duplexing; diskette; disk farm; diskless workstation; disk mirroring; Disk Operating System; disk operating system; disk striping; Dislang; disman; display; display hack; Display PostScript; Display Screen Equipment; display standard; display standards; display terminal; Dissociated Press; distfix; Distributed Component Object Model; Distributed Computing Environment; distributed database; Distributed Data Management; Distributed Eiffel; Distributed Logic Programming; Distributed Management Environment; distributed memory; Distributed Network Operating System; Distributed Operating Multi Access Interactive Network; Distributed Processes; Distributed Queue Dual Bus; Distributed Smalltalk; distributed system; distributed systems; distribution; distributive lattice; disusered; dithering; Ditto Drive; diverge; divisor; dj; DJGPP; DjVu; DK; dk; DL/1; DLC; DLCI; DLE; DLG; DL/I; DLL; DLM; DLP; DLPI; DLT; DLUR/DLUS; DLZ1; dm; DMA; DMAD; dmake; DMALGOL; DME; DMI; DML; DMM; DMTF; DMZ; DNA computing; DNF; DNIS; DNIX; DNOS; DNS; do; DOA; Doc; doc; docking station; DOCMaker; doco; DOCSIS; document; documentation; Document Examiner; Document Image Processing; Document Object Model; Document Style Semantics and Specification Language; Document Type Definition; DOCUS; DoD; DoD-1; dodgy; DOD-STD-2167A; DoD-STD-2168; DOE; DOF; dogcow; dogpile; dogwash; DOL; dollar; do loop; DOM; domain; domain address; Domain Analysis; domain architecture; Domain Architecture Model; domain calculus; domain engineering; domainist; domain maturity; domain model; domain name; Domain Name Server; Domain Name System; domain selection; Domain Software Engineering Environment; domain-specific language; domain theory; DOMF; Donald Knuth; dongle; dongle-disk; Don't do that then!; donuts; DOOM; DOORS; doorstop; Dorito Syndrome; DORUM; DOS; DOS/360; DOS Protected Mode Interface; DOS requester; dot; dot address; dot file; dot matrix printer; dot notation; dot pitch; dotted quad; double bucky; double-click; Double Data Rate Random Access Memory; Double Data Rate Synchronous Random Access Memory; double DECkers; double density; doubled sig; double-duplex; double quote; doubly linked list; DOUGLAS; Douglas Engelbart; Doug Lenat; DOW COMPILER; down; download; downloading; downsizing; downstream; down-time; downward closed; Downy cocktail; DP; DPB; DPer; dpi; DPL; DPL-82; DPLL; DPMI; DPMS; DPN; DPP; d-Prolog; DPS; dpSather; DPSK; DQDB; draco; Draft Once ReUse Many; drag and drop; drag-n-drop; DRAGON; dragon; Dragon Book; DRAGOON; drain; DRAM; DRAM refresh; Drawing eXchange Format; dread high bit disease; DREAM 6800; DRECNET; driver; drivers; Dr. James H. Clark; DRM; droid; DROOL; drool-proof paper; drop cable; drop-down list; drop-down menu; drop-ins; drop on the floor; drop-outs; DrScheme; DRUCO I; drugged; drum; drunk mouse syndrome; dry run; DS0; DS1; DS1C; DS2; DS3; DSA; DSDM; DSE; DSEE; D-shell connector; DSI; DSL; DSLAM; DS level; DSM; DSN; DSP; DSP32 Assembly Language; DSP56000; DSP56001; dsp56165-gcc; dsp56k-gcc; DSP/C; DSPL; DSR; DSS; DSSSL; DST; DSU; DSVD; DSW; DTALGOL; DTD; DTE; DT&E; DTLS; DTMF; DTP; DTR; DTS; DTSS; D-type; D-type flip-flop; DUA; dual; DUAL-607; dual-attached; dual-homed; Dual In-Line; Dual In-line Memory Module; Dual In-Line Package; dual ported; dual-stack; Dual Tone Multi Frequency; DUEL; Duff's device; dumbed down; dumb terminal; dump; dumpster diving; Dungeon; dup killer; duplex; Duplex High Speed Data; dup loop; Durra; dusty deck; DV cartridge; DVD; DVD-R; DVD-ROM; DVI; Dvorak; Dwarf Storage Unit; DWDM; dweeb; dwg; DWIM; DX4; DXF; dyadic; Dyadic Systems Limited; Dyalog APL; DYANA; Dylan; Dylperl; dynamic adaptive routing; Dynamic Address Translation; Dynamically Linked Library; dynamically scoped; dynamic analysis; dynamic binding; dynamic database management system; Dynamic Data Exchange; Dynamic Data Linking; dynamic DBMS; Dynamic Drive Overlay; Dynamic Execution; Dynamic Host Configuration Protocol; Dynamic HTML; DYnamic LANguage; dynamic link; dynamic link library; Dynamic Object-Oriented Requirements System; dynamic RAM; dynamic random access memory; dynamic routing; DYnamics ANAlyzer; dynamic scope; dynamic scoping; Dynamic Systems Development Method; dynamic translation; DYNAMO; Dynix; Dynix Automated Library Systems; dynner; DYSAC; DYSTAL; dz;