| BABYLON | BACAIC | Bachman |
| backbone site | backgammon | back-propagation |
| BAD | bag on the side | BALITAC |
| bamf | bang | bang on |
| banner | bare metal | barf |
| barfulation | barfulous | barney |
| Baroque | baroque | baseband |
| bash | BASIC AUTOCODER | BASIC V |
| bathtub curve | baz | BBC Microcomputer |
| BC | BCL | BC NELIAC |
| BCNU | BEA | Bedrock |
| BELL | Bell Communications Research, Inc | Bell Laboratories |
| bells, whistles, and gongs | Berkeley EDIF200 | Berkeley Network |
| berklix | Bernoulli principle | Bertrand |
| Bertrand Meyer | BETA | beta |
| beta abstraction | beta reduction | BiCapitalisation |
| bi-endian | BIFF | biff |
| Big bag of pages | BIG-LAN | bigot |
| binary exponential backoff | binary tree | BIOR |
| BIP | BIPS | Birds Of a Feather |
| BISDN | Bison++ | bit bang |
| bit bashing | bitblt | bit twiddling |
| bitwise complement | bixie | BJC4000 |
| black art | black hole | blargh |
| blast | blat | BLAZE |
| BLAZE 2 | bletcherous | B-LINE |
| blinkenlights | blit | blivet |
| Bloggs Family, the | Blosim | blow an EPROM |
| blow past | blow up | BLOX |
| BLT | Blue | blue wire |
| blurgle | BMASF | BNF |
| BNR Pascal | BNR Prolog | boa |
| board | boat anchor | Bob |
| Boehm B. | BOF | bogon |
| bogon filter | bogon flux | bogosity |
| bogue out | boink | bondage-and-discipline language |
| bonk/oif | Bookreader | Bookviewer |
| Booster | BOOTP | boot virus |
| BOSS | bottom-unique | bounce |
| bounce message | boundary scan | bound variable |
| bournebasic | Bourne shell | boxen |
| brain-damaged | brain-dead | brain dump |
| branch to Fishkill | Brazil | break |
| break-even point | breath-of-life packet | BRIDGE |
| Brilliant | bring X to its knees | broadcast |
| broken | brouter | BRUIN |
| BUAF | BUAG | bubble memory |
| bubble sort | bucky bits | buffer |
| bug-compatible | bug-for-bug compatible | buglix |
| built-in | Built-in Self Test | bum |
| bump | burble | Burge's Language |
| buried treasure | Butterfly Common LISP | Butterfly Scheme |
| buzz | bwBASIC | BWQ |
| by hand | CAD/CAM | CADET |
| CAFE | CAGE | CAIS-A |
| CAiSE | Calculus of Communicating Systems | Calendar Application Programming Interface |
| Caliban | California State University San Marcos | call-by-value |
| call-by-value-result | CALS | CAM-6 |
| Cambridge Lisp | CAMIL | Caml Light |
| Campus Wide Information System | Canada | Candle |
| canonical name | Captain Abstraction | cardinal number |
| CARDS | caret | careware |
| CAS 8051 Assembler | CASE Data Interchange Format | CASE framework |
| CASE*Method | CASE SOAP III | CASE tools |
| casters-up mode | CAT | CATO |
| CBASIC | C Beautifier | C/C++ |
| CCalc | CCIRN | CCITT |
| CCL | CCLU | ccmail |
| CCR | CCTA | CDE |
| CDL | cd tilde | Cecil |
| Cedar | CEEMAC+ | CEI-PACT |
| Cellang | CEN | Centrum voor Wiskunde en Informatica |
| cforth | CFP | CHIP-48 |
| C-Interp | CIP Language | CIRcuit CALculus |
| CML | COMMEN | Compas Pascal |
| COMPASS | Compiler-Compiler | compiler-compiler |
| compiler jock | Compiler Language for Information Processing | Compiler Target Language |
| complete | complete graph | complete lattice |
| Complex Instruction Set Computer | complexity analysis | COMPREHENSIVE |
| COMPROSL | Compu$erve | Compulink Information eXchange |
| Compusult Ltd. | Computational Adequacy Theorem | COMTRAN |
| control tty | conversion to iteration | convert.f90 |
| cooked mode | COOL | Coordinating Committee for Intercontinental Research Networks |
| copper | Copper Distributed Data Interface | coprocessor |
| copying garbage collection | CORAL | CORAL 66 |
| CORC | core gateway | corge |
| Cornell List Processor | Cornell Theory Center | Coroutine Pascal |
| Corporation for Open Systems | CORREGATE | Correlatives and Conversions |
| Cortex | CORTL | COSE |
| COSINE | cosmic rays | cowboy |
| COWSEL | CP | CPL |
| CPS | CPU Wars | crank |
| CrApTeX | crash | Cray instability |
| crayola | crayon | creationism |
| creeping elegance | C-Refine | CREW PRAM |
| crippleware | Crisis Software | CRISP |
| crisp | critical mass | critical section |
| CRL | crock | cross-assembler |
| cross-post | cross software | CROSSTABS |
| CROW PRAM | crudware | cryptanalysis |
| Crypt Breakers Workbench | Crystal | CS-4 |
| C++SIM | CSL | CSM |
| CSMA/CD | CSNET | CSO |
| CSP/80 | CS/PCode | CS-Prolog |
| CSPS | CSP-S | CS/QCode |
| CSSA | CSS/II | CSTools |
| CTY | Cube | cube |
| CUCH | Culler-Fried System | CUPID |
| CUPL | curly bracket | currying |
| curseperl | curses | CUSI |
| cuspy | custom | cut a tape |
| CWIC | C with Classes | Cy486SLC |
| cyberpunk | CYBIL | CYCL |
| cycle drought | cycle of reincarnation | D |
| DAA | DACAPO | DACNOS |
| DACTL | Daisy | DAISY 201 |
| DANTE | DAP Fortran | DAPLEX |
| DARE | DAS | DASL |
| database manager | database server | DATABUS |
| Datacom | data driven | Data Encryption Algorithm |
| Data Encryption Key | Data Encryption Standard | datagram |
| data hierarchy | Datamation | DataViews |
| DataVis | DAU | DAZIX |
| dBXL | DCA | DCALGOL |
| DCDL | DCL | D. C. Power Lab |
| dd | DDCMP | DDE Manager |
| DDIF | DDT | DEACON |
| dead | death code | Death Star |
| decay | DECdesign | DECdns |
| DEChead | decision support | decision support database |
| deckle | DECnet | Decus cpp |
| DEC Wars | DECwindows | DECwrite |
| DED | deep magic | deep space |
| de facto standard | Defense Communications Agency | Defense Data Network |
| Defense Data Network Network Information Center | Defense Information Systems Agency | deferral |
| degree | dehose | delint |
| Delirium | delta | Delta-4 |
| Delta-Prolog | DELTASE | demand driven |
| DeMarco | demented | Demeter |
| demo | demo version | depeditate |
| deprecated | descent function | Descriptive Top-Level Specification |
| Design System language | desktop manager | DESQview |
| DESY | DETAB | development |
| devo | DEX | DFA |
| DFC | DGL | DG/L |
| DIALOG | dialup | DIAMAG |
| diameter | Diamond | DIBOL |
| dictionary flame | diff | digest |
| Digicom | digit | Digital Express Group, Inc. |
| Digital Library Initiative | Digital Signal Processing | DIGITAL Standard MUMPS |
| dike | DIN | ding |
| dink | DinnerBell | DINO |
| dinosaur | dinosaur pen | Direct Connection |
| directed acyclic graph | directed graph | Directory Access Protocol |
| Directory System Agent | Directory User Agent | dirtball |
| dirty power | disjoint union | Disjunctive Normal Form |
| Display PostScript | Dissociated Press | Distributed Computing Environment |
| distributed database | Distributed Eiffel | Distributed Management Environment |
| Distributed Operating Multi Access Interactive Network | Distributed Processes | Distributed Smalltalk |
| distributed system | diverge | divisor |
| DL/1 | DLCI | DLG |
| DL/I | DLM | DMAD |
| dmake | DMALGOL | DNS |
| doc | Document Image Processing | Document Style Semantics and Specification Language |
| DOCUS | DoD-1 | dodgy |
| DOE | dogcow | dogpile |
| dogwash | DOL | DOMF |
| dongle-disk | donuts | doorstop |
| DOS Protected Mode Interface | dot address | dotted quad |
| double bucky | doubled sig | DOW COMPILER |
| down | DP | DPB |
| DPer | dpi | DPL |
| DPL-82 | dpSather | draco |
| drag and drop | DRAGON | dragon |
| Drawing eXchange Format | DRECNET | DRM |
| drop cable | drop-ins | drop on the floor |
| drop-outs | DRUCO I | drugged |
| drum | drunk mouse syndrome | DSE |
| DSM | DSP32 Assembly Language | DSP56000 |
| DSP56001 | dsp56165-gcc | dsp56k-gcc |
| DSP/C | DSS | DST |
| DTALGOL | dual-attached | dual ported |
| Duff's device | dumpster diving | dup killer |
| Duplex High Speed Data | Durra | dusty deck |
| dweeb | DWIM | Dylperl |
| dynamic adaptive routing | dynamic binding | DYNAMO |
| DYSAC | DYSTAL | eager evaluation |
| Eagle | EAROM | earthquake |
| Ease | EASE II | EASIAC |
| EAST | Eastern Washington University | EASY FOX |
| Ebone | EC++ | ECAP II |
| Echidna | echo | echo cancellation |
| ECHT | ECIP2 | ECLIPSE |
| ECMA | Econet | ECOOP |
| ECP | ECRC-Prolog | ECSL |
| ECSP | ECSS II | ECSSL |
| EDA | EDIF | EDIFACT |
| Edinburgh Prolog | Edinburgh SML | Edison |
| EEPROM | EER | Eh |
| EHTS | Eiffel source checker | EL1 |
| el(alpha) | Elan | elder days |
| elegant | elephant | elephantine |
| elevator controller | ELF | ELLA |
| Ellemtel | ELLIS | ELMAMETA |
| ELP | EMA | EMDIR |
| Emerald | Emitter Coupled Logic | EML |
| Empty Nest | emulator | EMX |
| Encapsulated PostScript | encapsulation | Enhanced Dynamic Random Access Memory |
| Ente Nazionale Italiano di Unificazione | Envoy | EOF |
| EOL | EOUG | EPILOG |
| EPROS | EPSIMONE | EqL |
| EQLOG | EQLog | Eqn |
| Equel | era | ERCIM |
| EREW PRAM | ERFPI | ergonomic |
| ergonomics | Eris | ESF |
| ESI | esim | ESL |
| ESLPDPRO | ESP | Estelle |
| Esterel | EstPC | ET |
| ET++ | EtherGate | Ethernet meltdown |
| Eudora | EULER | EuLisp |
| EUnet Ltd. | Euphoria | Eureka |
| Eureka step | Eurocard | Euro-ISDN |
| EuropaNET | Eva | evolutionary algorithm |
| evolutionary computation | evolutionary programming | evolution strategy |
| examining the entrails | EXAPT | Excelan |
| Excelerator | exception | exception handler |
| EXE | exercise, left as an | eXodus |
| EXOS | explicit parallelism | Exploratory Data Analysis |
| Express | Extended Fortran Language | Extended ML |
| Extended Pascal | Extended Tiny | extensional |
| extensional equality | eXternal Data Representation | EXTRA |
| EZ | f2c | F68K |
| FAC | factor | FAD |
| failure | FALSE | faradise |
| FARNET | fas | FASBOL |
| FASE | F-code | FCP |
| fdlibm | fear and loathing | feature creature |
| featurectomy | Federal Geographic Data Committee | Federal Networking Council |
| feed-forward | Feel | feep |
| feeper | feeping creature | feeping creaturism |
| FEL | fence | fencepost error |
| Fetch | ffccc | FFP |
| FGHC | FGL | FGL+LV |
| FGRAAL | Fiber Distributed Data Interface | FIDIL |
| field circus | Fifth | File Attach |
| File Composition | File Request | file server |
| file signature | File Transfer Protocol | filk |
| filter | firefighting | firewall code |
| fireworks mode | Firmware | first generation language |
| first-order | FITNR | FITS |
| flaky | FLAP | flarp |
| flat | flatten | Fleng |
| Flex++ | flib | FLIC |
| FLIP | F-Logic | FLOP |
| FLOPS | FLOW-MATIC or FLOWMATIC | FLPL |
| FMQ | FMS | FNAL |
| FOAF | FOCAL | FOCL |
| FOD | FOIL | followup |
| fontology | foogol | FOOL |
| Fools' Lisp | Foonly | FOOP |
| FORC | Force | ForceOne |
| ForceTwo | foreground | for free |
| FORMAC | FORMAL | Formula ALGOL |
| Forsythe | Fortran 66 | Fortran 77 |
| Fortran 90 | Fortran D | Fortran I |
| Fortran II | Fortran III | Fortran IV |
| Fortran-Linda | Fortran M | Fortran-Plus |
| Fortran V | Fortran VI | FORTRUNCIBLE |
| fortune cookie | forward analysis | forward chaining |
| forward delta | FORWISS | For Your Information |
| fossil | foundation | four-colour glossies |
| FP2 | fpc | frame pointer |
| framework | Framework 4 | framing specification |
| FRANK | FRED | fred |
| frednet | free | FreeHEP |
| Freenet | freerexx | free variable |
| freeze | Friend | FRINGE |
| frink | fritterware | FRL |
| FRMT-FTRN | frob | frobnicate |
| frobnitz | frogging | Frolic |
| front end | front-end processor | fry |
| FSL | fsplit | FTAM |
| FTP by mail | FTTP | fudge |
| fudge factor | FUDGIT | FUD wars |
| Fuel-can | full-custom | fully lazy lambda lifting |
| Fun | functional | functional unit |
| function application | functor | funky |
| FUNLOG | FunnelWeb | funny money |
| FUSE | FUSION | fuzzball |
| fuzzy logic | fuzzy subset | fweep |
| FWIW | FX-87 | FYA |
| FYI4 | G2 | gabriel |
| GADS | Gaelic | gag |
| GAIA | Galileo | gamut |
| GAN | GANDALF | gang bang |
| GAPLog | Gargoyle | Garnet |
| GARP | garply | GAT |
| GATE | gated | GC |
| GCL | G-Code | GDMO |
| GDPL | GEA | GEANT |
| Gedanken | gedanken | geef |
| geek out | GEI | General Magic |
| General Protection Failure | General Purpose Graphic Language | General Purpose Language |
| generate | generation | Genesia |
| genetic algorithm | GENOVA | Gentleman's Portable Coroutine System |
| GEN-X | Geographical Information System | GEOS |
| GEPURS | Gerald | ghostview |
| GIFF | GIM-1 | GIN |
| GINA | Ginger | GIP |
| GIPS | GIRL | GKS-3D |
| GL | Glammar | glark |
| GLASS | glass | glassfet |
| glass tty | Glish | Glisp |
| glitch | Global Network Navigator | glork |
| Glypnir | GMD Toolbox for Compiler Construction | GNU assembler |
| GNU BC | GNU DC | GNU E |
| GNUMACS | GNU Privacy Guard | GNU superoptimiser |
| go flatline | GOL | golden |
| GOM | gonkulator | Gopher object type |
| gorets | gorilla arm | go root |
| gorp | GOSMACS | Gosperism |
| GOSPL | GP | GPF |
| GPL | GPSS | GPX |
| GRAAL | GRAF | Graffiti |
| GRAIL | GRAIN | GRAM |
| grammatical inference | Grapes | Grapevine |
| Graphic Language | graph reduction | graph rewriting system |
| GRAPPLE | GRAS | GRASP/Ada |
| GRASPIN | grault | Gray |
| Great Runes | Green Book CD-ROM | green card |
| green lightning | green machine | GRG |
| GRIB | grick | grilf |
| GRIND | grind | grind crank |
| GRIP | gripenet | gritch |
| grix | groff | grok |
| gronk | gronked | group |
| grovel | grunge | GSL |
| Guide | guiltware | gunch |
| GVL | GW-Ada | gweep |
| GWM | Gypsy | h |
| hacker humour | Hacking X for Y | hack on |
| hack value | ha ha only serious | hair |
| HALMAT | halting problem | hammer |
| handshaking | handwave | hang |
| happily | hardwarily | Harvest C |
| has the X nature | hat | Hayes |
| HBOOK | hc | HCI |
| HCLP | HCPRVR | HCS |
| HDFL | header | head normalisation theorem |
| heads down | heavyweight | heavy wizardry |
| Helen Keller mode | Helix | HEP |
| HEPDB | HEPiX | HEPnet |
| HEPVM | HEQS | HERA |
| heterogeneous | Hewlett-Packard | Hewlett Packard Precision Architecture |
| Hewlett-Packard Visual Engineering Environment | HHOK | hidden flag |
| hierarchy | high bit | Higher Education National Software Archive |
| high-level language | high moby | High Performance Computing and Communications |
| HIGZ | HiLog | hing |
| HINT | HiPAC | hirsute |
| HISTORIAN | HLISP | Hobbit |
| hobbit | HOL | HOL-88 |
| HOL-90 | HOL-UNITY | holy wars |
| home machine | HOOK | horizontal application |
| hose | HOS-STPL | hostname |
| hotlink | hot spot | HOTT |
| house wizard | HPcode | HPCode-Plus |
| HP-GL/2 | HPL | HPLOT |
| HTLM | HTTL | HTTP/1.0 |
| HUGO | Human Interface Technology Laboratory | hung |
| hungry puppy | Hybrid | Hyper-C |
| HyperCard | hypercube | Hyper-Man |
| HyperNeWS | Hyperscript | hyperspace |
| Hyperstrict | HyperTalk | hysterical reasons |
| HyTime | IAD | IAM |
| I-APL | IAR | IBM 801 |
| IBM discount | Iburg | I-CASE |
| ICES | ICETRAN | Iconicode |
| IC-Prolog | ICSI | ICWS |
| IDAMS | IDEAL | IDEF |
| idempotent | I didn't change anything! | Id Nouveau |
| IDOL | IDS/I | IEEE 1076 |
| IEEE 802.2 | IEEE 802.5 | IFAC |
| ifdef out | IFIP | IFX |
| IGES | IGL | IITRAN |
| ILISP | ill-behaved | ILLIAC |
| ILOC | Ilog Solver | Imago Europe plc |
| Imago On-line | imake | inc |
| incantation | include | include war |
| incremental constraint solver | inductive relation | inference engine |
| INFN | Infobahn | Info BASIC |
| Information Algebra | Information Builders | Information Innovation |
| Information Management | Information Processing Language | Information Resource Management |
| Information Systems Factory | Information Technology Infrastructure Library | Informix |
| INGRES | InnovAda | inode |
| insanely great | INSIGHT | Institute for Global Communications |
| Institute of Electrical and Electronics Engineers, Inc. | Integrated Systems Architecture | Intel Literature Sales |
| INTERACTIVE | Interactive CourseWare | Interactive Data Language |
| Interagency Interim National Research and Education Network | InterBase | Interest Group in Pure and Applied Logics |
| interesting | Interface Architect | Interface Definition Language |
| Interface Description Language | Interlan | Interleaf |
| INTERLINK | Interlisp-10 | Intermedia Interchange Format |
| Internet Architecture Board | Internet-Draft | Internet Engineering and Planning Group |
| Internet Engineering Steering Group | Internet Experiment Note | Internet Express |
| Internet Monthly Report | Internet Public Library | Internet Registry |
| Internet Research Task Force | internetworking | Internex On-Line |
| interoperability | interoperable database | Interpress |
| interrupt list | interrupt priority level | interrupt request |
| InterViews | I-OOA | IPL |
| IPS | IQ | IQL |
| IRDS | Iris | iron |
| iron box | Ironman | ironmonger |
| irrefutable | ISDE | ISEE |
| ISETL | ISIS | ISL |
| ISLisp | ISMAP | ISO 9000 |
| ISO Development Environment | ISO Pascal | ISPL |
| ISPS | ISV | ITS |
| Ivan | Ivan Sutherland | Iverson's Language |
| ivs | IVTRAN | IVY |
| IWBNI | IYFEG | J |
| J3 | J73 | jack in |
| JAD | Jade | JaM |
| jam | Janus | JFCL |
| jiffy | jitter | jock |
| joe code | Joint Academic NETwork | Joyce |
| JPLDIS | JRL | JTC1/SC24 |
| JTS | juggling eggs | Jughead |
| jump off into never-never land | jump trace buffer | Juno |
| jupiter | Jym | K5 |
| Kali | KAP | Karel |
| KBMS | KEE | Keldysh Institute of Applied Mathematics |
| ken | KeyNote Software | keypal |
| keyword | Khornerstone | KIBO |
| kiboze | kick | Kid |
| killer micro | killer poke | kill file |
| kiosk | KIPS | KISS |
| KISS Principle | KL0 | KL1 |
| Klerer-May System | klone | KL-ONE |
| KMODEL | Knights of the Lambda-Calculus | Knowledge Management System |
| knowledge representation | Knowledge Systems Laboratory | Knuth |
| Korn Shell | kremvax | KRL |
| L6 | Lab for Computer Science | LaborNet |
| Lace | lace card | Lakota |
| LAMBDA | lambda abstraction | lambda lifting |
| LAMINA | LANCE | Language H |
| language lawyer | Language Sensitive Editor | language-sensitive editor |
| languages of choice | LANL | LAP |
| LAP4 | LAPD | Larch |
| Larch/C++ | Large Installation Systems Administration | larval stage |
| lase | latch | LAU |
| LAVA | LAX | lazy list |
| lazy sml2c | LBL | LCC |
| LCL | LDB | LDL |
| LDL1 | LDT | LE/1 |
| Leaf Distribution Limited | leaf site | Lean |
| LEAP | leapfrog attack | least recently used |
| LECOM | LeFun | legal |
| legalese | LEGOL | Le-Lisp |
| Lempel-Ziv Welch compression | LERP | LEVEL5 OBJECT |
| level-sensitive scan design | LG | LGDF |
| LGEN | LIDO | LiE |
| LIFIA | LIGHT | like this |
| Lila | Lily | LIMDEP |
| LIMP | Lincoln Reckoner | linear address space |
| linear function | Linear Graph Notation | line probing |
| line starve | Lingo | LINGOL |
| Link Access Procedure on the D channel | Link Access Protocol for Modems | link-dead |
| LINPACK | lint | Linux Network Administrators' Guide |
| LIPL | LIS | LISP 1 |
| LISP 1.5 | LISP 2 | LISP70 |
| LISP A | Lispkit Lisp | Lisp-Linda |
| Lisp Object-Oriented Programming System | LISP, Objects, and Symbolic Programming | Lisptalk |
| LispView | Listproc | Liszt |
| literature | LITHE | lithium lick |
| LITTLE | Little Smalltalk | live data |
| Live Free Or Die! | liveware | LLM3 |
| LM3 | LML | LM-Prolog |
| LNF | LO | L&O |
| load | lobotomy | locality |
| local loopback addresses | locals | locked and loaded |
| locked up | Locus | LogC |
| logical | logical relation | logic emulator |
| logic gate | Logic Replacement Technology | LOGIN |
| LOGISCOPE | LOGLISP | LOGOL |
| LOOK | Looking Glass | LOOKS |
| loop combination | loose bytes | LOP |
| lord high fixer | Lore | lost in the noise |
| LOTIS | lots of MIPS but no I/O | Lotus Notes |
| Lout | low-bandwidth | LPG |
| LPL | lpr | LPS |
| LPT | LRLTRAN | LSB |
| LSL | L-Soft | LSYD |
| LT-2 | LTR | LTR3 |
| LUCID | lump uncurrying | lunatic fringe |
| LUSTRE | LYaPAS | LYNX |
| Lynx | LynxOS | Lynx Real-Time Systems |
| LYRIC | LZ77 compression | LZ78 compression |
| lzexe | m2 | M2toM3 |
| M3 | m4 | M5 |
| MAC | MAC-360 | MAC address |
| MACAnalyst | Macaulay | MACDesigner |
| macdink | MACE | Mach |
| Machiavelli | machinable | machine |
| MAchine INdependent SAIL | machine learning | machoflops |
| Macintoy | Macintrash | MACL |
| MACRO | macro | macro- |
| macrology | Macro SAP | MACSYMA |
| MacX | Madaline | MADCAP |
| MADTRAN | MAGIC | magic |
| magic cookie | Magic Paper | Magic Switch Story |
| MAGNUM | Magritte | Maisie |
| Makedoc | makefile | Maker Interchange Format |
| MALI | malloc | management |
| manged | mangle | mangler |
| manularity | MAO | Maple |
| Maril | marketroid | Markov |
| Markowitz | mark-sweep garbage collection | Mars |
| MARSYAS | Martian | Martin Marietta Laboratories Moorestown |
| MARVIN | MAS | MASCOT |
| MASM | MasPar Unity | Massachusetts Institute of Technology |
| massage | Massively Multiplayer Online Game | Matchmaker |
| Mathcad | Mathematical Analysis without Programming | MATHLAB |
| MATH-MATIC or MATHMATIC | math-out | Matrix |
| Matrix Compiler | maximal free expression | MAXIMOP |
| Maxis Software | MBASIC | Mbogo, Dr. Fred |
| MBONE | MCC | McG360 |
| MCP-1600 | mcvax | MDL |
| meatware | MegaHertz | megapenny |
| MEGO | MELD | MELDC |
| Melinda | member function | MENTOR |
| menuitis | MENYMA/S | Mercury Autocode |
| MERISE | Mesa | message |
| message passing | mess-dos | META 5 |
| MetaCard | Meta-CASE tool | METAFONT |
| Meta-II | METAL | metalanguage |
| metaprogram | Met-English | METEOR |
| me too | Metropolitan Area Network | M-expression LISP |
| MFC | MIB Variable | Mic-1 |
| Mic-2 | microarray | microcentury |
| Microcom Networking Protocol | microcomputer | MicroDroid |
| MicroEmacs | microfloppies | microfortnight |
| microLenat | Micro ML | Micronetics Standard MUMPS |
| microPLANNER | microReid | Microware Corporation |
| MIDAS | Midas | middleware |
| MILITRAN | milliLampson | MILNET |
| mimencode | MIMOLA | Minerva software |
| Mini-ML | Mini PL/I | MINITAB II |
| MINUIT | minus | minus infinity |
| MIPS R2010 | MIPS R3000 | MIPS R4000 |
| Miracula | misbug | misfeature |
| miswart | MIX | MIXAL |
| MIX Communications | ML-2000 | MLAB |
| MLISP | ML Kit | MLL |
| ML-lex | ML-Linda | ML Threads |
| ML-Twig | Mma | mmap |
| MML | MOBSSL-UAF | mockingbird |
| Mock Lisp | modal | MODCAL |
| mode bit | MODEF | MODEM7 |
| moderator | MODSIM II | Modula-2* |
| Modula-2+ | Modula-3 | Modula-3* |
| Modula-3pi | Modula-P | Modula-Prolog |
| Modula/R | Modular C | Modular Prolog |
| Modulex | molly-guard | monitor |
| monkey up | monoid | monotonic |
| Montage | Moof | Moore bound |
| Moore graph | Mops | MORAL |
| MORTRAN | Moscow ML | Mosiac |
| Most Significant Bit | Motif | Motorola 68050 |
| Motorola 88000 | Mouse | mouse ahead |
| mouse around | MP-1 | MPL II |
| M-Prolog | MPS III | MPSX |
| MPV | MRS | mtc |
| Muddle | muFP | mu-law |
| Mul-T | MultiCal System | multicast addressing |
| multicast backbone | Multi-Garnet | multihomed host |
| multilayer perceptron | Multimedia Internet Mail Extensions | Multi-Pascal |
| Multiple Instruction/Multiple Data | Multiplexor Channel | MultiScheme |
| mumblage | mumble | munch |
| munching | munching squares | munchkin |
| mung | munge | museum |
| mutter | N10 | NAG |
| nailed to the wall | naive | naive user |
| nano- | nanotechnology | Napier |
| NAPLPS | NAPSS | nasal demons |
| NASTRAN | National Information Services and Systems | National Research and Education Network |
| National Science Foundation Network | National Software Reuse Directory | National Spatial Data Infrastructure |
| Native Language System | NATURAL | Natural English |
| Natural Language Information Analysis Method | Nawk | NBS |
| NCS | neat hack | neep-neep |
| negation by failure | NELIAC | Neon |
| neophilia | Neptune | NERECO |
| NetBEUI | NetBIOS | NetBOLLIX |
| netCDF | Netfind | NETL |
| netload | Netmarq Limited | netnews |
| net.personality | net.police | netrock |
| netter | Network Definition Language | Network extensible Window System |
| Network Information Center | Network News Transfer Protocol | Network Operations Center |
| Network Termination | Network Time Protocol | Neutral Interconnect |
| New Flavors | newgroup wars | New Jersey |
| NeWS | NewsClip | Newspeak |
| Newsqueak | New Testament | Newton |
| NewWave | NewYacc | New York State Educational Reasearch ETwork |
| New York University | Nexpert Object | NFQL |
| NFT | NGL | NIAL |
| NIAL Systems Ltd. | NIAM | NICE |
| nick | nickle | NICOL I |
| Nightmare File System | NIH | NIHCL |
| NIKL | NIL | NISO |
| NJCL | NODAL | Nodal Switching System |
| noddy | node | NOMEX underwear |
| nondeterministic | nonlinear | Non-Maskable Interrupt |
| non-optimal solution | Nonpareil | nontrivial |
| non-uniform quantising logarithmic compression | no-op | NOR |
| NORC COMPILER | NorCroft | NORD PL |
| normal order reduction | NorthWestNet | NoteCards |
| Nother | not ready for prime time | NPL |
| NPPL | N-Prolog | NQS |
| Nqthm | NSE | NT |
| NuBus | nu-calculus | NUCLEOL |
| nude | nuke | numbers |
| Numeris | Nuprl | NU-Prolog |
| Nu Thena | NYU OMNIFAX | O2 |
| OATH | Ob- | OBDC |
| Oberon-V | OBJ | OBJ0 |
| OBJ2 | ObjectCenter | Object CHILL |
| object code | Object Compatibility Standard | Objective PASCAL |
| ObjectLOGO | Object management system | Object Oberon |
| Objectworks | Object Z | Objlog |
| OBJT | ObjVlisp | ObjVProlog |
| Obliq | OBSCURE | observational equivalence |
| OCAL | OCODE | ODA |
| Ode | off-side rule | off the trolley |
| OIL | OLDAS | old fart |
| Old Testament | OLGA | O-Logic |
| OMA | Omega-algebraic | Omega test |
| OMF | OMNICODE | OMNIFAX |
| OMNITAB | OMTool | Ondine |
| one-line fix | ones complement | On-Line Computer system |
| OnX | OOGL | OOPS |
| OOPSLA | OOSD | OOZE |
| Opal | Open Distributed System Architecture | Open Network Computing |
| Open Scripting Architecture | Open Search | open switch |
| OPS83 | Optical Time Domain Reflectometry | optimise |
| optimism | OPTRAN | Oracle*CASE |
| Orbit | Orca | order-embedding |
| ordering | OREGANO | O'Reilly and Associates |
| Orwell | OS/2 | OSA extension |
| OSCAR | OSSL | OTT |
| overrun | overrun screw | Owl |
| Oz | oz | P+ |
| p2c | P3L | P4 |
| PACE | packet | Packet Assembler/Disassembler |
| Packet Switch Node | PACT I | PACTOLUS |
| padded cell | Paddle | PAGE |
| Page Description Language | PAISley | PANON |
| Pansophic | Paper Feed Control Character | PARADE |
| PARADIGM PLUS | Paradigms of AI Programming | Paradise |
| Paradox Application Language | Paragon | Paralation |
| Paralation C | Paralation LISP | ParAlfl |
| Parallel Presence Detect | parallel reduction | Parallel SML |
| parameter RAM | parametric polymorphism | paraML |
| ParaSoft Corp | Parasol | parentheses |
| Paris | Parkinson's Law of Data | Park-Miller |
| Parlance | Parlog | Parlog++ |
| parm | PARMACS | ParMod |
| parser generator | Parsley | Partial Differential Equation LANguage |
| partial equivalence relation | partial function | partially ordered set |
| partial ordering | PARTS | PARULEL |
| Pascal- | Pascal-80 | Pascal+CSP |
| Pascal-F | Pascal-FC | Pascal/L |
| Pascal-Linda | Pascal-m | Pascal P4 |
| Pascal/R | Pascal-S | Pascal-SC |
| pasos2 | Pasqual | PASSIM |
| pastie | patch space | PATCHY |
| pathological | Path Pascal | pattern matching |
| PAW++ | payware | PBM |
| pC++ | PCF | PC-ism |
| PCL | PCLIPS | PC Pursuit |
| PC-Scheme | PCS/Geneva | PCTE+ |
| PC-ware | PDC Prolog | PDEL |
| pdksh | PDL | PDM |
| PDP-11 | PDP-20 | PDSA cycle |
| PDS/MaGen | PeaceNet | Pebble |
| Pebbleman | PECOS | Pedagogic Algorithmic Language |
| PEEK | PEEL | PENCIL |
| pencil and paper | PEPsy | percent |
| perceptron | perfect programmer syndrome | perl-byacc |
| perplexity | person of no account | pessimal |
| pessimising compiler | PEX | phage |
| phase | phase of the moon | phase-wrapping |
| philosophy | PHOCUS | PICL |
| PicTeX | Pictorial Janus | PIE |
| piggybacking | pig, run like a | PIL |
| PIL/I | PILOT | Pilot European Image Processing Archive |
| PIM | Pine | PIRL |
| pistol | PIT | PITA |
| pixmap | pizza box | PL360 |
| PL516 | PL.8 | PLACE |
| PLAGO | plaid screen | PLAIN |
| plain ASCII | Planet | PLANIT |
| PLANNER | Planner-73 | PLANS |
| plants | PLASMA | platform |
| Platform Independent Graphical User Interface | Platon | Playground |
| playpen | pleonasm | Plexus |
| plingnet | PLisp | PL/I SUBSET |
| PL/I Subset G | PLITS | PL/M |
| PL/P | PL/PROPHET | PL/Seq |
| PLUM | plumbing | Plural EuLisp |
| PLUS | PM | P-mail |
| PML | PNU-Prolog | POCAL |
| POFAC | POGO | point of presence |
| POJO | poke | poll |
| polygon pusher | POM | Ponder |
| POOL | POOL2 | POOL-I |
| POOL-T | POP++ | POP-1 |
| POP-10 | POP-2 | POP-9X |
| POPART | POPCORN | POPJ |
| Poplar | POPLER | POPLOG |
| POPLOG ML | Portable Common Loops | Portable Scheme Debugger |
| Portable Scheme Interpreter | PORTAL | porting |
| Port Language | POSE | postcardware |
| posted write-through | posting | postmaster |
| POSTQUEL | POSYBL | POWER |
| power hit | PowerOpen | PowerOpen Association |
| PPL | PPN | PRA |
| PRE-CC | precedence lossage | PREP |
| Presentation Manager | prestidigitization | PRESTO |
| pretty pictures | prettyprint | preventive maintenance |
| PRI | Primary Rate Interface | Primenet, Inc. |
| prime time | principal type | PRINT I |
| printing discussion | PRISM | Privacy Enhanced Mail |
| privileged instruction | PRL | Probe |
| problem state | PROFILE | profile |
| PROGENY | proglet | Program Composition Notation |
| Program Design Language | Programmers Hierarchical Interactive Graphics System | programming |
| program transformation | PROJECT | project assurance |
| Prolog++ | Prolog-2 | Prolog-D-Linda |
| Prolog-II | Prolog-III | Prolog-Linda |
| Pronunciation | PROOF/L | Proposal Writing |
| proprietary | PROSE | ProSet |
| PROSPER | Prospero | protected mode |
| PROTEUS | protocol | Protocol Data Unit |
| PROTON | Protosynthex | Prototyper |
| prototyping | provably difficult | provably unsolvable |
| provocative maintenance | prowler | PSA |
| PS-ALGOL | pseudoprime | PseudoScheme |
| pseudosuit | psychedelicware | P-TAC |
| ptc | Ptolemy | PUB |
| pubic directory | public domain | PUFFT |
| punt | Purdue University | pure lambda-calculus |
| PureLink | Pure Lisp | Purify |
| QA4 | qdjanus | QLISP |
| QLOG | Q'NIAL | QT-OBJECTS |
| Quadrature Amplitude Modulation | quadruple bucky | Quake |
| quality | Quantify | quantum bogodynamics |
| QUEASY | Queen Mary and Westfield College | Queen's University |
| QUEL | Quicksort | QUIKSCRIPT |
| QUIKTRAN | QUIN | Quintec-Objects |
| quintillion | quote chapter and verse | quotient |
| Qu-Prolog | Quty | QX |
| R2RS | R3RS | R4RS |
| rabbit job | race condition | rain dance |
| RAL | RAMIS II | random |
| randomness | RAPT | raster burn |
| Ratatosk | rat belt | RATEL |
| rational | rave | rave on! |
| RBASIC | RBCSP | RCA 1805 |
| RCC | rc file | RCL |
| rdb | RDL | real hack |
| real mode | real-time | Real-Time Euclid |
| Real-Time Mentat | real user | Real World |
| reaper | recent changes | RECOL |
| recursive definition | recursive type | Red |
| redex | RediLisp | redocumentation |
| reduction | re-engineering | REF-ARF |
| REFINE | Refined C | Refined Fortran |
| reflexive domain | Reflexive transitive closure | regex |
| regexp | register | register dancing |
| register set | Register Transfer Language | REG-SYMBOLIC |
| REGTRAL | reify | RELATIVE |
| RELCODE | religion of CHI | religious issues |
| RenderMan Shading Language | rendezvous | replacement algorithm |
| Replay | replicator | Request For Technology |
| Required-COBOL | Research Systems, Inc. | Resource Access Control Facility |
| restriction | restructuring | retcon |
| retrocomputing | reuse | REX |
| REXXWARE | RFC 2364 | RFE |
| RGB | rich object | Rich Text Format |
| RIGAL | Rigel | Right Thing |
| RL | rl | RLaB |
| ROADS | Robert T. Morris | ROBEX |
| robust | Rockwell Protocol Interface | ROME |
| root mode | Root Normal Form | root version |
| rot13 | rotary debugger | round-trip time |
| Royal Veterinary and Agricultural University | RPL | RPL-1 |
| RPT | RRS | RS-232C |
| Réseaux Associés pour la Recherche Européenne | Réseaux IP Européens | rsh |
| RTBM | RTC++ | RTEE |
| RTFAQ | RTL/2 | RTM |
| rude | RUFL | RUNCIBLE |
| runes | run-length encoding | run time |
| ruptime | RUTH | Rx |
| Saber-C | Saber-C++ | SAC |
| SAD SAM | SAFARI | safe |
| safety | safety-critical system | SAIC |
| SALEM | salescritter | S-ALGOL |
| SALT | salt | salt mines |
| salt substrate | SAM76 | SAMeDL |
| samurai | sandbender | Sandman |
| Santa Cruz Operation | SASL+LV | SASL-YACC |
| satisfiability problem | say | SB-Prolog |
| scag | scalability | SCAN |
| scanf | scanner | scanno |
| scan path | SCEPTRE | Scheduling Application Programming Interface |
| Schema Definition Set | Schema Representation language | schematic capture |
| Schematik | Scheme84 | Scheme88 |
| Scheme-Linda | Scheme Object System | Scheme Repository |
| Schlaer-Mellor | Scode | SCOOP |
| SCOOPS | Scorpion | Scott-closed |
| Scott domain | SCRAP | scratch |
| Scratchpad II | scream and die | Screamer |
| screaming tty | screwage | scribble |
| Scribe | SCRIPT | scrog |
| SCROLL | scrool | scrozzle |
| scuzzy | SDE | SDF |
| SDK | SDL | SDL 92 |
| SDMS | SEAL | search-and-destroy mode |
| secondary damage | second generation language | second-system effect |
| sector interleave | sector mapping | Secure Hash Algorithm |
| SEE | seggie | segmentation fault |
| segv | SEI | Seiko RC-4000 |
| Self-Extensible Language | self-reference | SEM |
| semantic gap | semi | semicolon |
| SENDIT | senior bit | SE-ODP |
| SEPIA | Seque | Sequel |
| sequence | sequential file matching | Sequential Parlog Machine |
| SERCOS | Serial Interface Adaptor | Serial Line IP |
| server | set | Setext |
| SETL | SETL2 | Set Priority Level |
| SEUS | SEX | SFBI |
| SFD-ALGOL | SFL | SFLV |
| SHACO | shallow binding | shambolic link |
| Shape_VC | Share and enjoy! | shared memory |
| shelf | shell out | SHIFT |
| shitogram | shotgun debugging | shovelware |
| Show-And-Tell | showstopper | Shub-Internet |
| SICStus Prolog | sidecar | side-effect |
| Siemens | SIFT | Sig |
| sig block | SIGhyper | SIGMA |
| sig virus | SIL | Silage |
| silly walk | silo | Similix |
| SIML/I | SIMPAC | SIMPAS |
| SIMPL | SIMPLE | SIMPL/I |
| SIMPL-T | SIMSCRIPT | SIMSCRIPT I.5 |
| SIMSCRIPT II.5 | simulated annealing | Simulating Digital Systems |
| Simultaneous Engineering Environment | SINA | since time T equals minus infinity |
| single-attached | Single Instruction/Multiple Data | SIPB |
| SIPLAN | Siprol | Siri |
| SIRTS | Skel-ML | Sketchpad |
| Skill | SKOL | skolemisation |
| S-K reduction machine | SKsh | SL5 |
| SLANG | slap on the side | slave tty |
| SLIM | SLIP | SLIPS |
| Sloop | slopsucker | slurp |
| SMALGOL | SMALL | Small-C |
| small-office/home-office | Smalltalk/V | SMART |
| smart card | SMCC | SMG |
| SML | SML# | sml2c |
| SMNP | smoke | smoke and mirrors |
| smoke test | smoking clover | SMoLCS |
| SMOP | SNAFU principle | snarf |
| snarf & barf | snarf down | snark |
| sneakernet | Sniff | SNOBOL2 |
| SNOBOL3 | SNOOPS | SO 2 |
| SOAR | social science number | SOCRATIC |
| SODAS | SoftBench | softcopy |
| SoftModem | Software bus | Software Engineering Environment |
| software interrupt | software laser | software reliability |
| softwarily | softy | SOHIO |
| Solid State Disk | SOLO | Solution Based Modelling |
| Solve | SOM | SOS |
| sound card | soundness | SP |
| SP2 | SP/2 | space-cadet keyboard |
| space leak | SPADE | SPAR |
| sparse | SPDL | Speakeasy |
| Spec | SPECbase_fp92 | SPECbase_int92 |
| SPECbaserate | special-case | Special Interest Group |
| specialisation | specific markup | SPECOL |
| speech synthesis | SPEED | SPEEDEX |
| speedometer | SPG | SPID |
| spiffy | SPIT | SPITBOL |
| SPL | SPLash! | splat |
| SPL/I | SPLINTER | Split-C |
| spoiler | spoo | spoofing |
| spooge | spool file | SPRINT |
| Sprintnet | SPS | SPUR |
| SQE | SQL/DS | SQL Module Language |
| SRC Modula-3 | SRDL | SRL |
| SRP | SSADM | STAB-11 |
| Stack Environment Control Dump machine | stack puke | STAGE2 |
| Standard for the exchange of product model data | Standard Instrument Control Library | Standard Lisp |
| Standard ML of New Jersey | standard semantics | Stanford Research Institute |
| STAR 0 | StarBurst | Starset |
| stateless | state transition diagram | STD |
| STD 15 | STD 9 | STDWIN |
| steam-powered | Steelman | STENSOR |
| stereogram | STIL | STING |
| STMP | stomp on | STONE |
| stone knives and bearskins | Stoneman | stop bit |
| stoppage | STP4 | Strand |
| Strand88 | Strawman | STREAM |
| strength reduction | STRESS | strict |
| strict evaluation | strided | string reduction |
| stroke | strongly connected component | structural recursion |
| structured analysis | Structure of Management Information | STRUDL |
| STSC APL | stub network | stubroutine |
| STUDENT | studly | Stupids |
| stupid-sort | Sturgeon's Law | subband encoding |
| subnet | subnet address | Subset-Equational Language |
| SuccessoR | sucking mud | Sue |
| SUGAR | SUIF | suit |
| SUMMER | SUMMER SESSION | sunspots |
| sun-stools | SunView | SUPER |
| supercompilation | SuperJanet | SUPERMAC |
| superpipelined | superprogrammer | super source quench |
| SuperTalk | superuser | supervisor mode |
| Sure | surfing | SURGE |
| suspension | Suzie COBOL | SVR4 |
| swab | SweetLambda | swizzle |
| SYDEL | SYGMA | syllogism |
| Sylvan | SYMBAL | SYMBOLANG |
| symbolic inference | Symbol Manipulation Program | Symmetric LISP |
| syntactic salt | syntactic sugar | syntax directed translation |
| Synthesizer Specification Language | sysape | sys-frog |
| SYSLISP | system | System V |
| System V Interface Definition | T | TABLET |
| TAC | TACL | tail-strict |
| TALE | Taligent | TANSTAAFL |
| tape | Target-Machine Description Language | TARTAN |
| TASM | TASS | taste |
| Taxis | Tbl | TC/IX |
| tcl-debug | Tcl-DP | Tcode |
| TCOL | TCOL.Ada | TCPIP |
| TDFL | Technical/Office Protocol | TechRef |
| telecommuting | telematics | TelEnet |
| Telescript | TeleUSE | TELNET |
| TELOS | TELSIM | TEMPLOG |
| TEMPO | Tempura | ten-finger interface |
| tense | TERMAC | terminak |
| terminal brain death | terminal emulation | terminal junkie |
| terminal server | Terminate and Stay Resident | termination analysis |
| term rewriting system | terpri | Terse |
| TET | Texinfo | text |
| T-gen | TGS-II | That's not a bug, that's a feature! |
| The Cuckoo's Egg | The Force | The Internet Account |
| THEO | theology | theory |
| The World Of Cryton | the X that can be Y is not the true X | ThingLab |
| Think C | thrash | thread |
| thud | tick | TickIT |
| tickle a bug | tick-list features | tiger team |
| timeout | time sink | time T |
| Time to Live | time zone | tinman+ |
| TINT | Tiny | Tiny Clos |
| TIP | TIPL | tip of the ice-cube |
| tired iron | TK!Solver | TL1 |
| TM | TMG | TMRC |
| TMRCie | tn3270 | TNXE6 |
| to a first approximation | toggle | TOK |
| token ring | toolsmith | TOPS-10 |
| tourist information | Tower Technology Corporation | toy |
| toy problem | TPL | TPS |
| tptc | Trafola-H | trampoline |
| TRANDIR | TRANQUIL | TRANS |
| transaction | transducer | Transistor-Transistor Logic |
| transitive | transitive closure | trap |
| trap door | trash | Trash-80 |
| trawl | TREET | TREETRAN |
| Trellis | Trellis Code Modulation | TRIGMAN |
| TROLL | troll | Trumpet |
| TS | TSEE | TSL-1 |
| TUB | tube time | Tuckals |
| Tuki | tunneling | Tuple Space Smalltalk |
| tupling | Turbo Prolog | Turing |
| Turing Plus | Turing tar-pit | turist |
| TUTOR | tweak | Twentel |
| TWIG | twilight zone | twink |
| twm | twonkie | two-to-the-N |
| TX-0 | type class | type scheme |
| typographical error | UAN | UBASIC |
| ubiquitous computing | uC++ | U-Code |
| uemacs | UHELP | UIMS |
| UIMX | UMB | UMB Scheme |
| UNCOL | undefined external reference | under the hood |
| U-NET Limited | unfold/fold | unicos |
| unifier | UNIFORM | Uniform Resource Number |
| UNISAP | United Technologies Research Cente | UNITY |
| Unix brain damage | Unix conspiracy | unproto |
| unshar | unswizzle | unwind-protect |
| unwind the stack | upgrade | upload |
| UPMAIL Tricia Prolog | upper bound | UPS |
| upthread | Uranus | URC |
| URouLette | user experience | user-friendly |
| user interface | user interface copyright | USG Unix |
| USL | usr | USSA |
| UUCPNET | uudecode | UUPC |
| V | V.32ter | Valid |
| validation | vanilla | VAR |
| VAX DOCUMENT | VAXen | vaxherd |
| vaxism | vaxocentrism | VAXset |
| VAXstation | VCODE | vdiff |
| VDM | VDM++ | Verdi |
| verification | VGQF | VHDL |
| VHLL | video conference | videotex |
| Vienna Definition Language | Vienna Fortran | Views |
| VIF | Viola | virgin |
| Viron | virtual cache | Virtual Control Program Interface |
| Virtual Device Location | Virtual Home Environment | virtual machine |
| virtual point of presence | virtual shredder | Virtual Telecommunications Access Method |
| visionary | Visual C++ | visual programming |
| visual programming environment | VITAL | VIVID |
| viz | VLDB | VMEbus |
| VML | voice-net | VPL |
| VRTX | VSP | VSX |
| VTS | VUE | VUIT |
| W3 | WA-12 | wabbit |
| wacco | WAFL | WAITS |
| waldo | wallpaper | wall time |
| WAM | wango | wank |
| wannabee | Warm Silence Software | wart |
| Wasserman | WATBOL | WATFIV |
| WATFOR | WCL | WE |
| Webster | Webster's Dictionary | wedged |
| wedgie | wedgitude | Weeble |
| weeds | weenie | Weenix |
| well-behaved | well-connected | WFL |
| whack | whacker | whalesong |
| What's a spline? | wheel | wheel bit |
| wheel wars | White pages | whois |
| WIBNI | wiggles | Wild_LIFE |
| Wisp | wizard | wizardly |
| WizDOM | WOMBAT | Woodenman |
| WOOL | Worcester Polytechnic Institute | wrap around |
| write-only code | write-only language | WRT |
| WSL | WTF | WTH |
| X11R4 | X11R5 | X.28 |
| X.29 | X.3 | X3J16 |
| X.75 | XA | Xaw |
| Xbase | xbeeb | XC |
| X client | X Consortium | Xcoral |
| X.desktop | XEROX PARC | Xfun |
| Xi | X Image Extension | Xlib |
| XMODEM-1K | xnf2ver | XNS |
| X/open Portability Guide | XPC | XperCASE |
| XPG3 | xref | XRemote |
| XRN | Xt | XTRAN |
| XUI | Xv++ | XView |
| XVT | XWIP | xxgdb |
| XXX | Y | Yaa |
| YABA | YAPS | YAUN |
| Yellow | Yellow Book CD-ROM | yellow wire |
| YLISP | YMODEM | YMODEM-G |
| You are not expected to understand this | YP | Yu-Shiang Whole Fish |
| ZAPP | ZEBRA | Zed |
| Zen | ZENO | ZEST |
| zigamorph | Zilog Z280 | zone |
| zorch | Z shell | ZUG |
| ZyXEL | {log} | |
