| 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 |
| 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 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} | | |
