| 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 | 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} |
