| Aurora | automation | ayacc |
| b | BABEL | 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 | BOCS |
| Boehm B. | BOF | bogon |
| bogon filter | bogon flux | bogosity |
| bogue out | boink | bondage-and-discipline language |
| bonk/oif | Bookreader | Bookviewer |
| Booster | BOOTP | boot virus |
| Border Gateway Protocol | 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 |
| bulletproof | 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 | CDF |
| CDL | cd tilde | Cecil |
| Cedar | CEEMAC+ | CEI-PACT |
| CELIP | Cellang | CELLAS |
| 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 |
| DCE | 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 |
| enhancement | 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 | Exterior Gateway Protocol |
| eXternal Data Representation | EXTRA | EZ |
| f2c | F68K | FAC |
| factor | FAD | failure |
| fall over | 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 | FOLDOC New Terms |
| 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 | hierarchical routing | hierarchy |
| high bit | Higher Education National Software Archive | higher-order function |
| higher-order macro | 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. | instruction scheduling |
| 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 |
| Interior Gateway Protocol | 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 | JRST |
| JS | JSA | 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 |
| Life is hard | 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 |
| Meta-Crystal | 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 | mid-level network |
| 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 | Nebula |
| 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 |
| Open Distributed System Architecture | Open Network Computing | Open Scripting Architecture |
| 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 | plokta | 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 |
| pseudo-tty | 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 | quux |
| qux | 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 |
| SAVE | 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 |
| sequential file matching | Sequential Parlog Machine | SERCOS |
| Serial Interface Adaptor | Serial Line IP | server |
| set | Setext | SETL |
| SETL2 | Set Priority Level | SETS |
| 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 | transit network |
| 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 | widget |
| wiggles | Wild_LIFE | window system |
| Wisp | wizard | wizardly |
| WizDOM | WOMBAT | Woodenman |
| WOOL | Worcester Polytechnic Institute | WPL+ |
| WPOP | 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 |
| XPL | 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} | |
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