Amethyst
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bit rot3 is change the contents of a computer memory unpredictably, and various kinds of subtle media failures can corrupt files in mass storage), but they are quite rare (and computers are built with error-detecting circuitry to compensate ...
bit rot4 is hackers that cosmic rays are among the causes of such events turns out to be a myth; see the {cosmic rays} entry for details. The term {software rot} is almost synonymous. Software rot is the effect, bit rot the notional cause.
bit twiddling is n. 1. (pejorative) An exercise in {tuning} in which incredible amounts of time and effort go to produce little noticeable improvement, often with the result that the code has become incomprehensible. 2. Aimless small modifica...
bit twiddling2 is goal. 3. Approx. syn. for {bit bashing}; esp. used for the act of frobbing the device control register of a peripheral in an attempt to get it back to a known state.
bit-paired keyboard is n. obs. (alt. `bit-shift keyboard') A non-standard keyboard layout that seems to have originated with the Teletype ASR-33 and remained common for several years on early computer equipment. The ASR-33 was a mechanical de...
bit-paired keyboard2 is generate the character codes from keystrokes was by some physical linkage. The design of the ASR-33 assigned each character key a basic pattern that could be modified by flipping bits if the SHIFT or the CTRL key was p...
bit-paired keyboard3 is more of a Rube Goldberg kluge than it already was, the design had to group characters that shared the same basic bit pattern on one key. This is why the characters !"#$%&'() appear where they do on a Teletype (thankfu...
bit-paired keyboard4 is was *not* the weirdest variant of the {QWERTY} layout widely seen, by the way; that prize should probably go to one of several (differing) arrangements on IBM's even clunkier 026 and 029 card punches. When electroni...
bit-paired keyboard5 is there was no agreement in the industry over how the keyboards should be laid out. Some vendors opted to emulate the Teletype keyboard, while others used the flexibility of electronic circuitry to make their product l...
bit-paired keyboard6 is alternatives became known as `bit-paired' and `typewriter-paired' keyboards. To a hacker, the bit-paired keyboard seemed far more logical --- and because most hackers in those days had never learned to touch-type, th...
bit-paired keyboard7 is users to adapt keyboards to the typewriter standard. The doom of the bit-paired keyboard was the large-scale introduction of the computer terminal into the normal office environment, where out-and-out technophobes wer...
bit-paired keyboard8 is `typewriter-paired' standard became universal, `bit-paired' hardware was quickly junked or relegated to dusty corners, and both terms passed into disuse.
bitblt is /bit'blit/ n. [from {BLT}, q.v.] 1. Any of a family of closely related algorithms for moving and copying rectangles of bits between main and display memory on a bit-mapped device, or between two areas of either main or display memory...
bitblt2 is the case of overlapping source and destination rectangles is what makes BitBlt tricky). 2. Synonym for {blit} or {BLT}. Both uses are borderline techspeak.
BITNET is /bit'net/ [acronym Because It's Time NETwork] n. Everybody's least favorite piece of the network (see {network, the}). The BITNET hosts are a collection of IBM dinosaurs and VAXen (the latter with lobotomized comm hardware) that com...
BITNET2 is images (see {eighty-column mind}); thus, they tend to mangle the headers and text of third-party traffic from the rest of the ASCII/RFC-822 world with annoying regularity. BITNET is also notorious as the apparent home of {BIFF}.
bits is n.pl. 1. Information. Examples "I need some bits about file formats." ("I need to know about file formats.") Compare {core dump}, sense 4. 2. Machine-readable representation of a document, specifically as contrasted with paper "I ...
bits2 is does anyone know where I can get the bits?". See {softcopy}, {source of all good bits} See also {bit}.
bitty box is /bit'ee boks/ n. 1. A computer sufficiently small, primitive, or incapable as to cause a hacker acute claustrophobia at the thought of developing software for it. Especially used of small, obsolescent, single-tasking-only persona...
bitty box2 is Sinclair, VIC-20, TRS-80, or IBM PC. 2. [Pejorative] More generally, the opposite of `real computer' (see {Get a real computer!}). See also {mess-dos}, {toaster}, and {toy}.
bixie is /bik'see/ n. Variant {emoticon}s used on BIX (the Byte Information eXchange). The {smiley} bixie is <@_@>, apparently intending to represent two cartoon eyes and a mouth. A few others have been reported.
black art is n. A collection of arcane, unpublished, and (by implication) mostly ad-hoc techniques developed for a particular application or systems area (compare {black magic}). VLSI design and compiler code optimization were (in their begin...
black art2 is art; as theory developed they became {deep magic}, and once standard textbooks had been written, became merely {heavy wizardry}. The huge proliferation of formal and informal channels for spreading around new computer-related ...
black art3 is made both the term `black art' and what it describes less common than formerly. See also {voodoo programming}.
black hole is n. When a piece of email or netnews disappears mysteriously between its origin and destination sites (that is, without returning a {bounce message}) it is commonly said to have `fallen into a black hole'. "I think there's a blac...
black hole2 is site foovax has been dropping a lot of stuff on the floor lately (see {drop on the floor}). The implied metaphor of email as interstellar travel is interesting in itself. Compare {bit bucket}.
black magic is n. A technique that works, though nobody really understands why. More obscure than {voodoo programming}, which may be done by cookbook. Compare also {black art}, {deep magic}, and {magic number} (sense 2).
blast is 1. vt.,n. Synonym for {BLT}, used esp. for large data sends over a network or comm line. Opposite of {snarf}. Usage uncommon. The variant `blat' has been reported. 2. vt. [HP/Apollo] Synonymous with {nuke} (sense 3). Sometimes th...
blast2 is Blast them (y/n)?' would appear in the command window upon logout.
blat is n. 1. Syn. {blast}, sense 1. 2. See {thud}.
bletch is /blech/ [from Yiddish/German `brechen', to vomit, poss. via comic-strip exclamation `blech'] interj. Term of disgust. Often used in "Ugh, bletch". Compare {barf}.
bletcherous is /blech'*-r*s/ adj. Disgusting in design or function; esthetically unappealing. This word is seldom used of people. "This keyboard is bletcherous!" (Perhaps the keys don't work very well, or are misplaced.) See {losing}, {creti...
bletcherous2 is The term {bletcherous} applies to the esthetics of the thing so described; similarly for {cretinous}. By contrast, something that is `losing' or `bagbiting' may be failing to meet objective criteria. See also {bogus} and {r...
bletcherous3 is meaning than any of the above.
blinkenlights is /blink'*n-litz/ n. Front-panel diagnostic lights on a computer, esp. a {dinosaur}. Derives from the last word of the famous blackletter-Gothic sign in mangled pseudo-German that once graced about half the computer rooms i...
blinkenlights2 is in its entirety as follows ACHTUNG! ALLES LOOKENSPEEPERS! Das computermachine ist nicht fuer gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken ...
blinkenlights3 is bei das dumpkopfen. Das rubbernecken sichtseeren keepen das cotten-pickenen hans in das pockets muss; relaxen und watchen das blinkenlichten. This silliness dates back at least as far as 1959 at Stanford Universit...
blinkenlights4 is early 1960s, when it was reported at London University's ATLAS computing site. There are several variants of it in circulation, some of which actually do end with the word `blinkenlights'. In an amusing example of turnabout...
blinkenlights5 is their own versions of the blinkenlights poster in fractured English, one of which is reproduced here ATTENTION This room is fullfilled mit special electronische equippment. Fingergrabbi...
blinkenlights6 is computers is allowed for die experts only! So all the "lefthanders" stay away and do not disturben the brainstorming von here working intelligencies. Otherwise you will be out thrown and kicked andersw...
blinkenlights7 is astaunished the blinkenlights. See also {geef}.
blit is /blit/ vt. 1. To copy a large array of bits from one part of a computer's memory to another part, particularly when the memory is being used to determine what is shown on a display screen. "The storage allocator picks through the tabl...
blit2 is memory, and then blits it all back down again." See {bitblt}, {BLT}, {dd}, {cat}, {blast}, {snarf}. More generally, to perform some operation (such as toggling) on a large array of bits while moving them. 2. All-capitalized as `BL...
blit3 is designed by Rob Pike at Bell Labs, later commercialized as the AT&T 5620. (The folk etymology from `Bell Labs Intelligent Terminal' is incorrect.)
blitter is /blit'r/ n. A special-purpose chip or hardware system built to perform {blit} operations, esp. used for fast implementation of bit-mapped graphics. The Commodore Amiga and a few other micros have these, but in 1991 the trend is awa...
blitter2 is reincarnation}). Syn. {raster blaster}.
blivet is /bliv'*t/ [allegedly from a World War II military term meaning "ten pounds of manure in a five-pound bag"] n. 1. An intractable problem. 2. A crucial piece of hardware that can't be fixed or replaced if it breaks. 3. A tool that ha...
blivet2 is programmers that it has become an unmaintainable tissue of hacks. 4. An out-of-control but unkillable development effort. 5. An embarrassing bug that pops up during a customer demo. This term has other meanings in other technica...
blivet3 is hardware engineers of various kinds it seems to mean any random object of unknown purpose (similar to hackish use of {frob}). It has also been used to describe an amusing trick-the-eye drawing resembling a three-pronged fork that ...
blivet4 is until one realizes that the parts fit together in an impossible way.
block is [from process scheduling terminology in OS theory] 1. vi. To delay or sit idle while waiting for something. "We're blocking until everyone gets here." Compare {busy-wait}. 2. `block on' vt. To block, waiting for (something). "Lunc...
block transfer computations is n. From the television series "Dr. Who", in which it referred to computations so fiendishly subtle and complex that they could not be performed by machines. Used to refer to any task that should be expressible as...
blow an EPROM is /bloh *n ee'prom/ v. (alt. `blast an EPROM', `burn an EPROM') To program a read-only memory, e.g. for use with an embedded system. This term arises because the programming process for the Programmable Read-Only Memories (PROM...
blow an EPROM2 is Programmable Read-Only Memories (EPROMs) involved intentionally blowing tiny electrical fuses on the chip. Thus, one was said to `blow' (or `blast') a PROM, and the terminology carried over even though the write process on ...
blow away is vt. To remove (files and directories) from permanent storage, generally by accident. "He reformatted the wrong partition and blew away last night's netnews." Oppose {nuke}.
blow out is vi. Of software, to fail spectacularly; almost as serious as {crash and burn}. See {blow past}, {blow up}.
blow past is vt. To {blow out} despite a safeguard. "The server blew past the 5K reserve buffer."
blow up is vi. 1. [scientific computation] To become unstable. Suggests that the computation is diverging so rapidly that it will soon overflow or at least go {nonlinear}. 2. Syn. {blow out}.
BLT is /B-L-T/, /bl*t/ or (rarely) /belt/ n.,vt. Synonym for {blit}. This is the original form of {blit} and the ancestor of {bitblt}. It referred to any large bit-field copy or move operation (one resource-intensive memory-shuffling operati...
BLT2 is and TOPS-10 was sardonically referred to as `The Big BLT'). The jargon usage has outlasted the {PDP-10} BLock Transfer instruction from which {BLT} derives; nowadays, the assembler mnemonic {BLT} almost always means `Branch if Less ...
Blue Book is n. 1. Informal name for one of the three standard references on the page-layout and graphics-control language PostScript (`PostScript Language Tutorial and Cookbook', Adobe Systems, Addison-Wesley 1985, QA76.73.P67P68, ISBN 0-201-...
Blue Book2 is known as the {Green Book} and {Red Book}. 2. Informal name for one of the three standard references on Smalltalk `Smalltalk-80 The Language and its Implementation', David Robson, Addison-Wesley 1983, QA76.8.S635G64, ISBN 0-201...
Blue Book3 is and red books). 3. Any of the 1988 standards issued by the CCITT's ninth plenary assembly. Until now, they have changed color each review cycle (1984 was {Red Book}, 1992 would be {Green Book}); however, it is rumored that th...
Blue Book4 is 1992. These include, among other things, the X.400 email spec and the Group 1 through 4 fax standards. See also {{book titles}}.
Blue Glue is [IBM] n. IBM's SNA (Systems Network Architecture), an incredibly {losing} and {bletcherous} communications protocol widely favored at commercial shops that don't know any better. The official IBM definition is "that which binds b...
Blue Glue2 is loathing}. It may not be irrelevant that {Blue Glue} is the trade name of a 3M product that is commonly used to hold down the carpet squares to the removable panel floors common in {dinosaur pens}. A correspondent at U. Minn....
Blue Glue3 is 80 bottles of the stuff hanging about, so they often refer to any messy work to be done as `using the blue glue'.
blue goo is n. Term for `police' {nanobot}s intended to prevent {gray goo}, denature hazardous waste, destroy pollution, put ozone back into the stratosphere, prevent halitosis, and promote truth, justice, and the American way, etc. See {{n...
BNF is /B-N-F/ n. 1. [techspeak] Acronym for `Backus-Naur Form', a metasyntactic notation used to specify the syntax of programming languages, command sets, and the like. Widely used for language descriptions but seldom documented anywhere, s...
BNF2 is from other hackers. 2. In {{science-fiction fandom}}, BNF means `Big-Name Fan' (someone famous or notorious). Years ago a fan started handing out black-on-green BNF buttons at SF conventions; this confused the hacker contingent ter...
boa is [IBM] n. Any one of the fat cables that lurk under the floor in a {dinosaur pen}. Possibly so called because they display a ferocious life of their own when you try to lay them straight and flat after they have been coiled for some tim...
boa2 is cables for the 370 are limited to 200 feet because beyond that length the boas get dangerous --- and it is worth noting that one of the major cable makers uses the trademark `Anaconda'.
board is n. 1. In-context synonym for {bboard}; sometimes used even for USENET newsgroups. 2. An electronic circuit board (compare {card}).
boat anchor is n. 1. Like {doorstop} but more severe; implies that the offending hardware is irreversibly dead or useless. "That was a working motherboard once. One lightning strike later, instant boat anchor!" 2. A person who just takes up...
bogo-sort is /boh`goh-sort'/ n. (var. `stupid-sort') The archetypical perversely awful algorithm (as opposed to {bubble sort}, which is merely the generic *bad* algorithm). Bogo-sort is equivalent to repeatedly throwing a deck of cards in th...
bogo-sort2 is testing whether they are in order. It serves as a sort of canonical example of awfulness. Looking at a program and seeing a dumb algorithm, one might say "Oh, I see, this program uses bogo-sort." Compare {bogus}, {brute forc...
bogometer is /boh-gom'-*t-er/ n. See {bogosity}. Compare the `wankometer' described in the {wank} entry; see also {bogus}.
bogon is /boh'gon/ [by analogy with proton/electron/neutron, but doubtless reinforced after 1980 by the similarity to Douglas Adams's `Vogons'; see the Bibliography] n. 1. The elementary particle of bogosity (see {quantum bogodynamics}). For ...
bogon2 is again" means that it is broken or acting in an erratic or bogus fashion. 2. A query packet sent from a TCP/IP domain resolver to a root server, having the reply bit set instead of the query bit. 3. Any bogus or incorrectly formed ...
bogon3 is used to refer to any bogus thing, as in "I'd like to go to lunch with you but I've got to go to the weekly staff bogon". 5. A person who is bogus or who says bogus things. This was historically the original usage, but has been ov...
bogon4 is also {bogosity}, {bogus}; compare {psyton}.
bogon filter is /boh'gon fil'tr/ n. Any device, software or hardware, that limits or suppresses the flow and/or emission of bogons. "Engineering hacked a bogon filter between the Cray and the VAXen, and now we're getting fewer dropped packets....
bogon flux is /boh'gon fluhks/ n. A measure of a supposed field of {bogosity} emitted by a speaker, measured by a {bogometer}; as a speaker starts to wander into increasing bogosity a listener might say "Warning, warning, bogon flux is rising"...
bogosity is /boh-go's*-tee/ n. 1. The degree to which something is {bogus}. At CMU, bogosity is measured with a {bogometer}; in a seminar, when a speaker says something bogus, a listener might raise his hand and say "My bogometer just trigger...
bogosity2 is bogometer" means you just said or did something so outrageously bogus that it is off the scale, pinning the bogometer needle at the highest possible reading (one might also say "You just redlined my bogometer"). The agreed-upo...
bogosity3 is /mik`roh-len'*t/ (uL). The consensus is that this is the largest unit practical for everyday use. 2. The potential field generated by a {bogon flux}; see {quantum bogodynamics}. See also {bogon flux}, {bogon filter}, {bogus}...
bogosity4 is as a attack against noted computer scientist Doug Lenat by a {tenured graduate student}. Doug had failed the student on an important exam for giving only "AI is bogus" as his answer to the questions. The slur is generally cons...
bogosity5 is gag nevertheless. Some of Doug's friends argue that *of course* a microLenat is bogus, since it is only one millionth of a Lenat. Others have suggested that the unit should be redesignated after the grad student, as the microRei...
bogotify is /boh-go't*-fi/ vt. To make or become bogus. A program that has been changed so many times as to become completely disorganized has become bogotified. If you tighten a nut too hard and strip the threads on the bolt, the bolt has b...
bogotify2 is it any more. This coinage led to the notional `autobogotiphobia' defined as `the fear of becoming bogotified'; but is not clear that the latter has ever been `live' jargon rather than a self-conscious joke in jargon about jargo...
bogue out is /bohg owt/ vi. To become bogus, suddenly and unexpectedly. "His talk was relatively sane until somebody asked him a trick question; then he bogued out and did nothing but {flame} afterwards." See also {bogosity}, {bogus}.
bogus is adj. 1. Non-functional. "Your patches are bogus." 2. Useless. "OPCON is a bogus program." 3. False. "Your arguments are bogus." 4. Incorrect. "That algorithm is bogus." 5. Unbelievable. "You claim to have solved the halting pro...
bogus2 is bogus." 6. Silly. "Stop writing those bogus sagas." Astrology is bogus. So is a bolt that is obviously about to break. So is someone who makes blatantly false claims to have solved a scientific problem. (This word seems to have...
bogus3 is {random} --- mostly the negative ones.) It is claimed that `bogus' was originally used in the hackish sense at Princeton in the late 1960s. It was spread to CMU and Yale by Michael Shamos, a migratory Princeton alumnus. A glossary ...
bogus4 is word was first popularized (see {autobogotiphobia} under {bogotify}). The word spread into hackerdom from CMU and MIT. By the early 1980s it was also current in something like the hackish sense in West Coast teen slang, and it had...
bogus5 is Cambridge reports, by contrast, that these uses of `bogus' grate on British nerves; in Britain the word means, rather specifically, `counterfeit', as in "a bogus 10-pound note".
Bohr bug is /bohr buhg/ [from quantum physics] n. A repeatable {bug}; one that manifests reliably under a possibly unknown but well-defined set of conditions. Antonym of {heisenbug}; see also {mandelbug}.
boink is /boynk/ [USENET ascribed there to the TV series "Cheers" and "Moonlighting"] 1. To have sex with; compare {bounce}, sense 3. (This is mainstream slang.) In Commonwealth hackish the variant `bonk' is more common. 2. After the origin...
boink2 is for almost any net social gathering, e.g., Miniboink, a small boink held by Nancy Gillett in 1988; Minniboink, a Boinkcon in Minnesota in 1989; Humpdayboinks, Wednesday get-togethers held in the San Francisco Bay Area. Compare {@-...
bomb is 1. v. General synonym for {crash} (sense 1) except that it is not used as a noun; esp. used of software or OS failures. "Don't run Empire with less than 32K stack, it'll bomb." 2. n.,v. Atari ST and Macintosh equivalents of a UNIX `pan...
bomb2 is of little black-powder bombs or mushroom clouds are displayed, indicating that the system has died. On the Mac, this may be accompanied by a decimal (or occasionally hexadecimal) number indicating what went wrong, similar to the Ami...
bomb3 is {{MS-DOS}} machines tend to get {locked up} in this situation.
bondage-and-discipline language is A language (such as Pascal, Ada, APL, or Prolog) that, though ostensibly general-purpose, is designed so as to enforce an author's theory of `right programming' even though said theory is demonstrably inadequ...
bondage-and-discipline language2 is general-purpose programming. Often abbreviated `B&D'; thus, one may speak of things "having the B&D nature". See {{Pascal}}; oppose {languages of choice}.
bonk/oif is /bonk/, /oyf/ interj. In the {MUD} community, it has become traditional to express pique or censure by `bonking' the offending person. There is a convention that one should acknowledge a bonk by saying `oif!' and a myth to the eff...
bonk/oif2 is bonk/oif balance, causing much trouble in the universe. Some MUDs have implemented special commands for bonking and oifing. See also {talk mode}, {posing}.
book titles is There is a tradition in hackerdom of informally tagging important textbooks and standards documents with the dominant color of their covers or with some other conspicuous feature of the cover. Many of these are described in thi...
book titles2 is {Aluminum Book}, {Blue Book}, {Cinderella Book}, {Devil Book}, {Dragon Book}, {Green Book}, {Orange Book}, {Pink-Shirt Book}, {Purple Book}, {Red Book}, {Silver Book}, {White Book}, {Wizard Book}, {Yellow Book}, and {bible}.b...
book titles3 is v.,n. To load and initialize the operating system on a machine. This usage is no longer jargon (having passed into techspeak) but has given rise to some derivatives that are still jargon. The derivative `reboot' implies that...
book titles4 is that the boot is a {bounce} intended to clear some state of {wedgitude}. This is sometimes used of human thought processes, as in the following exchange "You've lost me." "OK, reboot. Here's the theory...." This term is als...
book titles5 is power-off condition) and `warm boot' (with the CPU and all devices already powered up, as after a hardware reset or software crash). Another variant `soft boot', reinitialization of only part of a system, under control of oth...
book titles6 is the {mess-dos} emulator, control-alt-insert will cause a soft-boot of the emulator, while leaving the rest of the system running." Opposed to this there is `hard boot', which connotes hostility towards or frustration with the...
book titles7 is hard-boot this losing Sun." "I recommend booting it hard." Historical note this term derives from `bootstrap loader', a short program that was read in from cards or paper tape, or toggled in from the front panel switches. This...
book titles8 is were expended on making it short in order to minimize the labor and chance of error involved in toggling it in), but was just smart enough to read in a slightly more complex program (usually from a card or paper tape reader), t...
book titles9 is turn was smart enough to read the application or operating system from a magnetic tape drive or disk drive. Thus, in successive steps, the computer `pulled itself up by its bootstraps' to a useful operating state. Nowadays th...
book titles10 is and reads the first stage in from a fixed location on the disk, called the `boot block'. When this program gains control, it is powerful enough to load the actual OS and hand control over to it.
bottom-up implementation is n. Hackish opposite of the techspeak term `top-down design'. It is now received wisdom in most programming cultures that it is best to design from higher levels of abstraction down to lower, specifying sequences of...
bottom-up implementation2 is to actual code. Hackers often find (especially in exploratory designs that cannot be closely specified in advance) that it works best to *build* things in the opposite order, by writing and testing a clean set of ...
bounce is v. 1. [perhaps from the image of a thrown ball bouncing off a wall] An electronic mail message that is undeliverable and returns an error notification to the sender is said to `bounce'. See also {bounce message}. 2. [Stanford] To pl...
bounce2 is Power Lab} building used by the Stanford AI Lab in the 1970s, there was a volleyball court on the front lawn. From 5 P.M. to 7 P.M. was the scheduled maintenance time for the computer, so every afternoon at 5 the computer would b...
bounce3 is voice would cry, "Now hear this bounce, bounce!" followed by Brian McCune loudly bouncing a volleyball on the floor outside the offices of known volleyballers. 3. To engage in sexual intercourse; prob. from the expression `bounci...
factpacks/jargon-split.fact view on Meta::CPAN
COME FROM6 is statement labeled 10. (This is particularly surprising because the label doesn't appear to have anything to do with the flow of control at all!) While sufficiently astonishing to the unsuspecting reader, this form of `COME FROM...
COME FROM7 is all, control will eventually pass to the following statement. The implementation of the general form was left to Univac FORTRAN, ca. 1975. The statement `AT 100' would perform a `COME FROM 100'. It was intended strictly as a...
COME FROM8 is promised to anyone so deranged as to use it in production code. More horrible things had already been perpetrated in production languages, however; doubters need only contemplate the `ALTER' verb in {COBOL}. `COME FROM' was su...
COME FROM9 is 15 years later, in C-INTERCAL (see {INTERCAL}, {retrocomputing}); knowledgeable observers are still reeling from the shock.
comm mode is /kom mohd/ [ITS from the feature supporting on-line chat; the term may spelled with one or two m's] Syn. for {talk mode}.
command key is [Mac users] n. The Macintosh key with the cloverleaf graphic on its keytop; sometimes referred to as `flower', `pretzel', `clover', `propeller', `beanie' (an apparent reference to the major feature of a propeller beanie), or {...
command key2 is The proliferation of terms for this creature may illustrate one subtle peril of iconic interfaces.
comment out is vt. To surround a section of code with comment delimiters or to prefix every line in the section with a comment marker; this prevents it from being compiled or interpreted. Often done when the code is redundant or obsolete, but...
comment out2 is the intent of the active code clearer; also when the code in that section is broken and you want to bypass it in order to debug some other part of the code. Compare {condition out}, usually the preferred technique in languages...
Commonwealth Hackish is n. Hacker jargon as spoken outside the U.S., esp. in the British Commonwealth. It is reported that Commonwealth speakers are more likely to pronounce truncations like `char' and `soc', etc., as spelled (/char/, /sok/),...
Commonwealth Hackish2 is Dots in {newsgroup} names tend to be pronounced more often (so soc.wibble is /sok dot wib'l/ rather than /sohsh wib'l/). The prefix {meta} may be pronounced /mee't*/; similarly, Greek letter beta is often /bee't*/, ...
Commonwealth Hackish3 is Preferred metasyntactic variables include `eek', `ook', `frodo', and `bilbo'; `wibble', `wobble', and in emergencies `wubble'; `banana', `wombat', `frog', {fish}, and so on and on (see {foo}, sense 4). Alternatives...
Commonwealth Hackish4 is `frenzy' (as in feeding frenzy), and `city' (examples "barf city!" "hack-o-rama!" "core dump frenzy!"). Finally, note that the American terms `parens', `brackets', and `braces' for (), [], and {} are uncommon; Commonw...
Commonwealth Hackish5 is brackets', and `curly brackets'. Also, the use of `pling' for {bang} is common outside the United States. See also {attoparsec}, {calculator}, {chemist}, {console jockey}, {fish}, {go-faster stripes}, {grunge}, {haksp...
Commonwealth Hackish6 is fixer}, {noddy}, {psychedelicware}, {plingnet}, {raster blaster}, {seggie}, {terminal junkie}, {tick-list features}, {weeble}, {weasel}, {YABA}, and notes or definitions under {Bad Thing}, {barf}, {bogus}, {bum}, {ch...
Commonwealth Hackish7 is {crunch}, {dodgy}, {gonk}, {hamster}, {hardwarily}, {mess-dos}, {nybble}, {proglet}, {root}, {SEX}, {tweak}, and {xyzzy}.
compact is adj. Of a design, describes the valuable property that it can all be apprehended at once in one's head. This generally means the thing created from the design can be used with greater facility and fewer errors than an equivalent to...
compact2 is imply triviality or lack of power; for example, C is compact and FORTRAN is not, but C is more powerful than FORTRAN. Designs become non-compact through accreting {feature}s and {cruft} that don't merge cleanly into the overall ...
compact3 is maintain that ANSI C is no longer compact).
compiler jock is n. See {jock} (sense 2).
compress is [UNIX] vt. When used without a qualifier, generally refers to {crunch}ing of a file using a particular C implementation of Lempel-Ziv compression by James A. Woods et al. and widely circulated via {USENET}. Use of {crunch} itself ...
Compu$erve is n. See {CI$}.
computer confetti is n. Syn. {chad}. Though this term is common, this use of the punched-card chad is not a good idea, as the pieces are stiff and have sharp corners that could injure the eyes. GLS reports that he once attended a wedding at ...
computer confetti2 is enthusiastically threw chad instead of rice. The groom later grumbled that he and his bride had spent most of the evening trying to get the stuff out of their hair.
computer geek is n. One who eats (computer) bugs for a living. One who fulfills all the dreariest negative stereotypes about hackers an asocial, malodorous, pasty-faced monomaniac with all the personality of a cheese grater. Cannot be used b...
computer geek2 is hackers; compare black-on-black usage of `nigger'. A computer geek may be either a fundamentally clueless individual or a proto-hacker in {larval stage}. Also called `turbo nerd', `turbo geek'. See also {clustergeeking},...
computron is /kom'pyoo-tron`/ n. 1. A notional unit of computing power combining instruction speed and storage capacity, dimensioned roughly in instructions-per-second times megabytes-of-main-store times megabytes-of-mass-storage. "That machi...
computron2 is enough computrons!" This usage is usually found in metaphors that treat computing power as a fungible commodity good, like a crop yield or diesel horsepower. See {bitty box}, {Get a real computer!}, {toy}, {crank}. 2. A mythi...
computron3 is quantity of computation or information, in much the same way that an electron bears one unit of electric charge (see also {bogon}). An elaborate pseudo-scientific theory of computrons has been developed based on the physical f...
computron4 is more rapidly as it is heated. It is argued that an object melts because the molecules have lost their information about where they are supposed to be (that is, they have emitted computrons). This explains why computers get so ho...
computron5 is computrons. Conversely, it should be possible to cool down an object by placing it in the path of a computron beam. It is believed that this may also explain why machines that work at the factory fail in the computer room the ...
computron6 is other hardware. (This theory probably owes something to the "Warlock" stories by Larry Niven, the best known being "What Good is a Glass Dagger?", in which magic is fueled by an exhaustible natural resource called `mana'.)
condition out is vt. To prevent a section of code from being compiled by surrounding it with a conditional-compilation directive whose condition is always false. The {canonical} examples are `#if 0' (or `#ifdef notdef', though some find this ...
condom is n. 1. The protective plastic bag that accompanies 3.5-inch microfloppy diskettes. Rarely, also used of (paper) disk envelopes. Unlike the write protect tab, the condom (when left on) not only impedes the practice of {SEX} but has al...
condom2 is drive mechanisms attempt to access the disk --- and can even fatally frustrate insertion. 2. The protective cladding on a {light pipe}.
connector conspiracy is [probably came into prominence with the appearance of the KL-10 (one model of the {PDP-10}), none of whose connectors matched anything else] n. The tendency of manufacturers (or, by extension, programmers or purveyors o...
connector conspiracy2 is that don't fit together with the old stuff, thereby making you buy either all new stuff or expensive interface devices. The KL-10 Massbus connector was actually *patented* by DEC, which reputedly refused to license ...
connector conspiracy3 is parties out of competition for the lucrative Massbus peripherals market. This is a source of never-ending frustration for the diehards who maintain older PDP-10 or VAX systems. Their CPUs work fine, but they are st...
connector conspiracy4 is drives with low capacity and high power requirements. In these latter days of open-systems computing this term has fallen somewhat into disuse, to be replaced by the observation that "Standards are great! There are ...
cons is /konz/ or /kons/ [from LISP] 1. vt. To add a new element to a specified list, esp. at the top. "OK, cons picking a replacement for the console TTY onto the agenda." 2. `cons up' vt. To synthesize from smaller pieces "to cons up an ex...
cons2 is fundamental operation for building structures. It takes any two objects and returns a `dot-pair' or two-branched tree with one object hanging from each branch. Because the result of a cons is an object, it can be used to build bin...
cons3 is think of it as a sort of universal constructor, and that is where the jargon meanings spring from.
considered harmful is adj. Edsger W. Dijkstra's note in the March 1968 `Communications of the ACM', "Goto Statement Considered Harmful", fired the first salvo in the structured programming wars. Amusingly, the ACM considered the resulting a...
considered harmful2 is policy) no longer print an article taking so assertive a position against a coding practice. In the ensuing decades, a large number of both serious papers and parodies have borne titles of the form "X considered Y". ...
considered harmful3 is over with the realization that both sides were wrong, but use of such titles has remained as a persistent minor in-joke (the `considered silly' found at various places in this lexicon is related).
console is n. 1. The operator's station of a {mainframe}. In times past, this was a privileged location that conveyed godlike powers to anyone with fingers on its keys. Under UNIX and other modern timesharing OSes, such privileges are guarde...
console2 is just the {tty} the system was booted from. Some of the mystique remains, however, and it is traditional for sysadmins to post urgent messages to all users from the console (on UNIX, /dev/console). 2. On microcomputer UNIX boxes, ...
console3 is character-only terminals talking to a serial port). Typically only the console can do real graphics or run {X}. See also {CTY}.
console jockey is n. See {terminal junkie}.
content-free is [by analogy with techspeak `context-free'] adj. Used of a message that adds nothing to the recipient's knowledge. Though this adjective is sometimes applied to {flamage}, it more usually connotes derision for communication styl...
content-free2 is centered on concerns irrelevant to the subject ostensibly at hand. Perhaps most used with reference to speeches by company presidents and other professional manipulators. "Content-free? Uh...that's anything printed on glossy...
content-free3 is "He gave a talk on the implications of electronic networks for postmodernism and the fin-de-siecle aesthetic. It was content-free."
control-C is vi. 1. "Stop whatever you are doing." From the interrupt character used on many operating systems to abort a running program. Considered silly. 2. interj. Among BSD UNIX hackers, the canonical humorous response to "Give me a br...
control-O is vi. "Stop talking." From the character used on some operating systems to abort output but allow the program to keep on running. Generally means that you are not interested in hearing anything more from that person, at least on t...
control-O2 is who is flaming. Considered silly.
control-Q is vi. "Resume." From the ASCII XON character used to undo a previous control-S (in fact it is also pronounced XON /X-on/).
control-S is vi. "Stop talking for a second." From the ASCII XOFF character (this is also pronounced XOFF /X-of/). Control-S differs from {control-O} in that the person is asked to stop talking (perhaps because you are on the phone) but will...
control-S2 is listen to him --- as opposed to control-O, which has more of the meaning of "Shut up." Considered silly.
Conway's Law is prov. The rule that the organization of the software and the organization of the software team will be congruent; originally stated as "If you have four groups working on a compiler, you'll get a 4-pass compiler". This was or...
Conway's Law2 is early proto-hacker who wrote an assembler for the Burroughs 220 called SAVE. The name `SAVE' didn't stand for anything; it was just that you lost fewer card decks and listings because they all had SAVE written on them.
cookbook is [from amateur electronics and radio] n. A book of small code segments that the reader can use to do various {magic} things in programs. One current example is the `PostScript Language Tutorial and Cookbook' by Adobe Systems, Inc ...
cookbook2 is has recipes for things like wrapping text around arbitrary curves and making 3D fonts. Cookbooks, slavishly followed, can lead one into {voodoo programming}, but are useful for hackers trying to {monkey up} small programs in unk...
cookbook3 is of phrasebooks in human languages.
cookie is n. A handle, transaction ID, or other token of agreement between cooperating programs. "I give him a packet, he gives me back a cookie." The claim check you get from a dry-cleaning shop is a perfect mundane example of a cookie; the...
cookie2 is later transaction to this one (so you get the same clothes back). Compare {magic cookie}; see also {fortune cookie}.
cookie bear is n. Syn. {cookie monster}.
cookie file is n. A collection of {fortune cookie}s in a format that facilitates retrieval by a fortune program. There are several different ones in public distribution, and site admins often assemble their own from various sources including ...
cookie monster is [from "Sesame Street"] n. Any of a family of early (1970s) hacks reported on {{TOPS-10}}, {{ITS}}, {{Multics}}, and elsewhere that would lock up either the victim's terminal (on a time-sharing machine) or the {{console}} (on ...
cookie monster2 is "I WANT A COOKIE". The required responses ranged in complexity from "COOKIE" through "HAVE A COOKIE" and upward. See also {wabbit}.
copper is n. Conventional electron-carrying network cable with a core conductor of copper --- or aluminum! Opposed to {light pipe} or, say, a short-range microwave link.
copy protection is n. A class of clever methods for preventing incompetent pirates from stealing software and legitimate customers from using it. Considered silly.
copybroke is /ko'pee-brohk/ adj. [play on `copyright'] Used to describe an instance of a copy-protected program that has been `broken'; that is, a copy with the copy-protection scheme disabled. Syn. {copywronged}.
copyleft is /kop'ee-left/ [play on `copyright'] n. 1. The copyright notice (`General Public License') carried by {GNU} {EMACS} and other Free Software Foundation software, granting reuse and reproduction rights to all comers (but see also {Gen...
copyleft2 is copyright notice intended to achieve similar aims.
copywronged is /ko'pee-rongd/ [play on `copyright'] adj. Syn. for {copybroke}.
core is n. Main storage or RAM. Dates from the days of ferrite-core memory; now archaic as techspeak most places outside IBM, but also still used in the UNIX community and by old-time hackers or those who would sound like them. Some derived ...
core2 is example, means `in memory' (as opposed to `on disk'), and both {core dump} and the `core image' or `core file' produced by one are terms in favor. Commonwealth hackish prefers {store}.
core dump is n. [common {Iron Age} jargon, preserved by UNIX] 1. [techspeak] A copy of the contents of {core}, produced when a process is aborted by certain kinds of internal error. 2. By extension, used for humans passing out, vomiting, or r...
core dump2 is All over the floor. What a mess." "He heard about X and dumped core." 3. Occasionally used for a human rambling on pointlessly at great length; esp. in apology "Sorry, I dumped core on you". 4. A recapitulation of knowledge...
core dump3 is one knows about a topic, esp. in a lecture or answer to an exam question. "Short, concise answers are better than core dumps" (from the instructions to an exam at Columbia; syn. {brain dump}). See {core}.
core leak is n. Syn. {memory leak}.
Core Wars is n. A game between `assembler' programs in a simulated machine, where the objective is to kill your opponent's program by overwriting it. Popularized by A. K. Dewdney's column in `Scientific American' magazine, this was actually ...
Core Wars2 is and Dennis Ritchie in the early 1960s (their original game was called `Darwin' and ran on a PDP-1 at Bell Labs). See {core}.
corge is /korj/ [originally, the name of a cat] n. Yet another meta-syntactic variable, invented by Mike Gallaher and propagated by the {GOSMACS} documentation. See {grault}.
cosmic rays is n. Notionally, the cause of {bit rot}. However, this is a semi-independent usage that may be invoked as a humorous way to {handwave} away any minor {randomness} that doesn't seem worth the bother of investigating. "Hey, Eric -...
cosmic rays2 is {tube}, where did that come from?" "Cosmic rays, I guess." Compare {sunspots}, {phase of the moon}. The British seem to prefer the usage `cosmic showers'; `alpha particles' is also heard, because stray alpha particles passin...
cosmic rays3 is errors (this becomes increasingly more likely as memory sizes and densities increase). Factual note Alpha particles cause bit rot, cosmic rays do not (except occasionally in spaceborne computers). Intel could not explain ran...
cosmic rays4 is hypothesis was cosmic rays. So they created the World's Largest Lead Safe, using 25 tons of the stuff, and used two identical boards for testing. One was placed in the safe, one outside. The hypothesis was that if cosmic r...
cosmic rays5 is a statistically significant difference between the error rates on the two boards. They did not observe such a difference. Further investigation demonstrated conclusively that the bit drops were due to alpha particle emissio...
cosmic rays6 is uranium) in the encapsulation material. Since it is impossible to eliminate these radioactives (they are uniformly distributed through the earth's crust, with the statistically insignificant exception of uranium lodes) it beca...
cosmic rays7 is to withstand these hits.
cough and die is v. Syn. {barf}. Connotes that the program is throwing its hands up by design rather than because of a bug or oversight. "The parser saw a control-A in its input where it was looking for a printable, so it coughed and died."
cowboy is [Sun, from William Gibson's {cyberpunk} SF] n. Synonym for {hacker}. It is reported that at Sun this word is often said with reverence.
CP/M is /C-P-M/ n. [Control Program for Microcomputers] An early microcomputer {OS} written by hacker Gary Kildall for 8080- and Z80-based machines, very popular in the late 1970s but virtually wiped out by MS-DOS after the release of the IBM ...
CP/M2 is company blew its chance to write the OS for the IBM PC because Kildall decided to spend a day IBM's reps wanted to meet with him enjoying the perfect flying weather in his private plane. Many of CP/M's features and conventions stro...
CP/M3 is systems such as {{TOPS-10}}, OS/8, RSTS, and RSX-11. See {{MS-DOS}}, {operating system}.
CPU Wars is /C-P-U worz/ n. A 1979 large-format comic by Chas Andres chronicling the attempts of the brainwashed androids of IPM (Impossible to Program Machines) to conquer and destroy the peaceful denizens of HEC (Human Engineered Computers)....
CPU Wars2 is many references to {ADVENT} and the immortal line "Eat flaming death, minicomputer mongrels!" (uttered, of course, by an IPM stormtrooper). It is alleged that the author subsequently received a letter of appreciation on IBM com...
CPU Wars3 is J. Watson Research Laboratories (then, as now, one of the few islands of true hackerdom in the IBM archipelago). The lower loop of the B in the IBM logo, it is said, had been carefully whited out. See {eat flaming death}.
cracker is n. One who breaks security on a system. Coined ca. 1985 by hackers in defense against journalistic misuse of {hacker} (q.v., sense 8). An earlier attempt to establish `worm' in this sense around 1981--82 on USENET was largely a fa...
crank is [from automotive slang] vt. Verb used to describe the performance of a machine, especially sustained performance. "This box cranks (or, cranks at) about 6 {megaflops}, with a burst mode of twice that on vectorized operations."
crash is 1. n. A sudden, usually drastic failure. Most often said of the {system} (q.v., sense 1), sometimes of magnetic disk drives. "Three {luser}s lost their files in last night's disk crash." A disk crash that involves the read/write he...
crash2 is and scraping off the oxide may also be referred to as a `head crash', whereas the term `system crash' usually, though not always, implies that the operating system or other software was at fault. 2. v. To fail suddenly. "Has the s...
crash3 is OS!" See {down}. Also used transitively to indicate the cause of the crash (usually a person or a program, or both). "Those idiots playing {SPACEWAR} crashed the system." 3. vi. Sometimes said of people hitting the sack after a l...
crash and burn is vi.,n. A spectacular crash, in the mode of the conclusion of the car-chase scene in the movie "Bullitt" and many subsequent imitators. Sun-3 monitors losing the flyback transformer and lightning strikes on VAX-11/780 backpla...
crash and burn2 is The construction `crash-and-burn machine' is reported for a computer used exclusively for alpha or {beta} testing, or reproducing bugs (i.e., not for development). The implication is that it wouldn't be such a disaster if...
crash and burn3 is would be inconvenienced.
crawling horror is n. Ancient crufty hardware or software that is kept obstinately alive by forces beyond the control of the hackers at a site. Like {dusty deck} or {gonkulator}, but connotes that the thing described is not just an irritation...
crawling horror2 is "Mostly we code new stuff in C, but they pay us to maintain one big FORTRAN II application from nineteen-sixty-X that's a real crawling horror...." Compare {WOMBAT}.
cray is /kray/ n. 1. (properly, capitalized) One of the line of supercomputers designed by Cray Research. 2. Any supercomputer at all. 3. The {canonical} {number-crunching} machine. The term is actually the lowercased last name of Seymour Cr...
cray2 is co-founder of the company. Numerous vivid legends surround him, some true and some admittedly invented by Cray Research brass to shape their corporate culture and image.
cray instability is n. A shortcoming of a program or algorithm that manifests itself only when a large problem is being run on a powerful machine (see {cray}). Generally more subtle than bugs that can be detected in smaller problems running o...
crayola is /kray-oh'l*/ n. A super-mini or -micro computer that provides some reasonable percentage of supercomputer performance for an unreasonably low price. Might also be a {killer micro}.
crayon is n. 1. Someone who works on Cray supercomputers. More specifically, it implies a programmer, probably of the CDC ilk, probably male, and almost certainly wearing a tie (irrespective of gender). Systems types who have a UNIX backgrou...
crayon2 is A {computron} (sense 2) that participates only in {number-crunching}. 3. A unit of computational power equal to that of a single Cray-1. There is a standard joke about this that derives from an old Crayola crayon promotional gim...
creationism is n. The (false) belief that large, innovative designs can be completely specified in advance and then painlessly magicked out of the void by the normal efforts of a team of normally talented programmers. In fact, experience has ...
creationism2 is only from evolutionary, exploratory interaction between one (or at most a small handful of) exceptionally able designer(s) and an active user population --- and that the first try at a big new idea is always wrong. Unfortunat...
creationism3 is planning models beloved of {management}, they are generally ignored.
creeping elegance is n. Describes a tendency for parts of a design to become {elegant} past the point of diminishing return. This often happens at the expense of the less interesting parts of the design, the schedule, and other things deemed ...
creeping elegance2 is {creeping featurism}, {second-system effect}, {tense}.
creeping featurism is /kree'ping fee'chr-izm/ n. 1. Describes a systematic tendency to load more {chrome} and {feature}s onto systems at the expense of whatever elegance they may have possessed when originally designed. See also {feeping crea...
creeping featurism2 is {BSD} UNIX has always been creeping featurism." 2. More generally, the tendency for anything complicated to become even more complicated because people keep saying "Gee, it would be even better if it had this feature ...
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