| 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 | BLOX | BLT |
| Blue | blue wire | blurgle |
| BMASF | BNF | BNR Pascal |
| BNR Prolog | boa | board |
| boat anchor | Bob | Boehm B. |
| 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 | Bourne Again SHell | bournebasic |
| 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 | 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 | 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 | CORAL |
| 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 | European Committee for Standardization |
| 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 | 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 |
| 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 |
| 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 |
| 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 | 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 | phone phreaking |
| phreak | 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 |
| PseudoScheme | pseudosuit | psychedelicware |
| P-TAC | ptc | Ptolemy |
| 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 |
| Sci-Hub | 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 adapter | 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 | stalker_portal/c/version.js |
| 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 |
| 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} | | |
