Amethyst
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dread high-bit disease is n. A condition endemic to PRIME (a.k.a. PR1ME) minicomputers that results in all the characters having their high (0x80) bit ON rather than OFF. This of course makes transporting files to other systems much more diff...
dread high-bit disease2 is devices. It is reported that PRIME adopted the reversed-8-bit convention in order to save 25 cents per serial line per machine. This probably qualifies as one of the most {cretinous} design tradeoffs ever made. Se...
dread high-bit disease3 is (including the Atari 800) have exhibited similar brain damage.
DRECNET is /drek'net/ [from Yiddish/German `dreck', meaning dirt] n. Deliberate distortion of DECNET, a networking protocol used in the {VMS} community. So called because DEC helped write the Ethernet specification and then (either stupidly o...
DRECNET2 is violated that spec in the design of DRECNET in a way that made it incompatible. See also {connector conspiracy}.
driver is n. 1. The {main loop} of an event-processing program; the code that gets commands and dispatches them for execution. 2. [techspeak] In `device driver', code designed to handle a particular peripheral device such as a magnetic disk or...
driver2 is `driver' also means a program that translates some device-independent or other common format to something a real device can actually understand.
droid is n. A person (esp. a low-level bureaucrat or service-business employee) exhibiting most of the following characteristics (a) na"ive trust in the wisdom of the parent organization or `the system'; (b) a propensity to believe obvious n...
droid2 is computers!); blind faith; (c) a rule-governed mentality, one unwilling or unable to look beyond the `letter of the law' in exceptional situations; and (d) no interest in fixing that which is broken; an "It's not my job, man" attitu...
droid3 is supermarket checkout assistant and bank clerk; the syndrome is also endemic in low-level government employees. The implication is that the rules and official procedures constitute software that the droid is executing. This become...
droid4 is properly debugged. The term `droid mentality' is also used to describe the mindset behind this behavior. Compare {suit}, {marketroid}; see {-oid}.
drool-proof paper is n. Documentation that has been obsessively {dumbed down}, to the point where only a {cretin} could bear to read it, is said to have succumbed to the `drool-proof paper syndrome' or to have been `written on drool-proof pape...
drool-proof paper2 is from Apple's LaserWriter manual "Do not expose your LaserWriter to open fire or flame."
drop on the floor is vt. To react to an error condition by silently discarding messages or other valuable data. "The gateway ran out of memory, so it just started dropping packets on the floor." Also frequently used of faulty mail and netnew...
drop on the floor2 is {black hole}, {bit bucket}.
drop-ins is [prob. by analogy with {drop-outs}] n. Spurious characters appearing on a terminal or console as a result of line noise or a system malfunction of some sort. Esp. used when these are interspersed with one's own typed input. Compa...
drop-outs is n. 1. A variety of `power glitch' (see {glitch}); momentary 0 voltage on the electrical mains. 2. Missing characters in typed input due to software malfunction or system saturation (this can happen under UNIX when a bad connectio...
drop-outs2 is spurious character interrupts). 3. Mental glitches; used as a way of describing those occasions when the mind just seems to shut down for a couple of beats. See {glitch}, {fried}.
drugged is adj. (also `on drugs') 1. Conspicuously stupid, heading toward {brain-damaged}. Often accompanied by a pantomime of toking a joint (but see appendix B). 2. Of hardware, very slow relative to normal performance.
drunk mouse syndrome is n. A malady exhibited by the mouse pointing device of some computers. The typical symptom is for the mouse cursor on the screen to move in random directions and not in sync with the motion of the actual mouse. Can usu...
drunk mouse syndrome2 is and plugging it back again. Another recommended fix for optical mice is to rotate your mouse pad 90 degrees. At Xerox PARC in the 1970s, most people kept a can of copier cleaner (isopropyl alcohol) at their desks. ...
drunk mouse syndrome3 is up enough {cruft} to be unreliable, the mouse was doused in cleaner, which restored it for a while. However, this operation left a fine residue that accelerated the accumulation of cruft, so the dousings became more a...
drunk mouse syndrome4 is declared `alcoholic' and sent to the clinic to be dried out in a CFC ultrasonic bath.
dumbass attack is /duhm'as *-tak'/ [Purdue] n. Notional cause of a novice's mistake made by the experienced, especially one made while running as root under UNIX, e.g., typing `rm -r *' or `mkfs' on a mounted file system. Compare {adger}.
dumbed down is adj. Simplified, with a strong connotation of *over*simplified. Often, a {marketroid} will insist that the interfaces and documentation of software be dumbed down after the designer has burned untold gallons of midnight oil mak...
dump is n. 1. An undigested and voluminous mass of information about a problem or the state of a system, especially one routed to the slowest available output device (compare {core dump}), and most especially one consisting of hex or octal {ru...
dump2 is memory, mass storage, or some file. In {elder days}, debugging was generally done by `groveling over' a dump (see {grovel}); increasing use of high-level languages and interactive debuggers has made this uncommon, and the term `dump'...
dump3 is backup. This usage is typical only at large timesharing installations.
dup killer is /d[y]oop kill'r/ [FidoNet] n. Software that is supposed to detect and delete duplicates of a message that may have reached the FidoNet system via different routes.
dup loop is /d[y]oop loop/ (also `dupe loop') [FidoNet] n. An incorrectly configured system or network gateway may propagate duplicate messages on one or more {echo}es, with different identification information that renders {dup killer}s ine...
dup loop2 is eventually reaches a system through which it has already passed (with the original identification information), all systems passed on the way back to that system are said to be involved in a {dup loop}.
dusty deck is n. Old software (especially applications) which one is obliged to remain compatible with (or to maintain). The term implies that the software in question is a holdover from card-punch days. Used esp. when referring to old scien...
dusty deck2 is of which was written in FORTRAN and very poorly documented but is believed to be too expensive to replace. See {fossil}.
DWIM is /dwim/ [acronym, `Do What I Mean'] 1. adj. Able to guess, sometimes even correctly, the result intended when bogus input was provided. 2. n.,obs. The BBNLISP/INTERLISP function that attempted to accomplish this feat by correcting many ...
DWIM2 is Occasionally, an interjection hurled at a balky computer, esp. when one senses one might be tripping over legalisms (see {legalese}). Warren Teitelman originally wrote DWIM to fix his typos and spelling errors, so it was somewhat id...
DWIM3 is make hash of anyone else's typos if they were stylistically different. This led a number of victims of DWIM to claim the acronym stood for `Damn Warren's Infernal Machine!'. In one notorious incident, Warren added a DWIM feature to t...
DWIM4 is One day another hacker there typed `delete *$' to free up some disk space. (The editor there named backup files by appending `$' to the original file name, so he was trying to delete any backup files left over from old editing sess...
DWIM5 is editor backup files, so DWIM helpfully reported `*$ not found, assuming you meant 'delete *'.' It then started to delete all the files on the disk! The hacker managed to stop it with a {Vulcan nerve pinch} after only a half dozen ...
DWIM6 is said he had been sorely tempted to go to Warren's office, tie Warren down in his chair in front of his workstation, and then type `delete *$' twice. DWIM is often suggested in jest as a desired feature for a complex program; it is a...
DWIM7 is instruction the ideal computer would have. Back when proofs of program correctness were in vogue, there were also jokes about `DWIMC' (Do What I Mean, Correctly). A related term, more often seen as a verb, is DTRT (Do The Right Thin...
dynner is /din'r/ 32 bits, by analogy with {nybble} and {{byte}}. Usage rare and extremely silly. See also {playte}, {tayste}, {crumb}.*earthquake [IBM] n. The ultimate real-world shock test for computer hardware. Hackish sources at IBM deny th...
dynner2 is initiated by the company to test quality-assurance procedures at its California plants.
Easter egg is n. 1. A message hidden in the object code of a program as a joke, intended to be found by persons disassembling or browsing the code. 2. A message, graphic, or sound effect emitted by a program (or, on a PC, the BIOS ROM) in res...
Easter egg2 is or keystrokes, intended as a joke or to display program credits. One well-known early Easter egg found in a couple of OSes caused them to respond to the command `make love' with `not war?'. Many personal computers have much ...
Easter egg3 is lists of the developers' names, political exhortations, snatches of music, and (in one case) graphics images of the entire development team.
Easter egging is [IBM] n. The act of replacing unrelated parts more or less at random in hopes that a malfunction will go away. Hackers consider this the normal operating mode of {field circus} techs and do not love them for it. Compare {sho...
eat flaming death is imp. A construction popularized among hackers by the infamous {CPU Wars} comic; supposed to derive from a famously turgid line in a WWII-era anti-Nazi propaganda comic that ran "Eat flaming death, non-Aryan mongrels!" or s...
eat flaming death2 is reported that the Firesign Theater's 1975 album "In The Next World, You're On Your Own" included the phrase "Eat flaming death, fascist media pigs"; this may have been an influence). Used in humorously overblown expressi...
EBCDIC is /eb's*-dik/, /eb'see`dik/, or /eb'k*-dik/ [acronym, Extended Binary Coded Decimal Interchange Code] n. An alleged character set used on IBM {dinosaur}s. It exists in at least six mutually incompatible versions, all featuring such de...
EBCDIC2 is and the absence of several ASCII punctuation characters fairly important for modern computer languages (exactly which characters are absent varies according to which version of EBCDIC you're looking at). IBM adapted EBCDIC from {...
EBCDIC3 is promulgated it as a customer-control tactic (see {connector conspiracy}), spurning the already established ASCII standard. Today, IBM claims to be an open-systems company, but IBM's own description of the EBCDIC variants and how ...
EBCDIC4 is classified top-secret, burn-before-reading. Hackers blanch at the very *name* of EBCDIC and consider it a manifestation of purest {evil}. See also {fear and loathing}.
echo is [FidoNet] n. A {topic group} on {FidoNet}'s echomail system. Compare {newsgroup}.
eighty-column mind is [IBM] n. The sort said to be possessed by persons for whom the transition from {punched card} to tape was traumatic (nobody has dared tell them about disks yet). It is said that these people, including (according to an o...
eighty-column mind2 is `face down, 9-edge first' (the 9-edge being the bottom of the card). This directive is inscribed on IBM's 1422 and 1602 card readers and is referenced in a famous bit of doggerel called "The Last Bug", the climactic lin...
eighty-column mind3 is the console Of hunger and thirst. Next day he was buried, Face down, 9-edge first. The eighty-column mind is thought by most hackers to dominate IBM's customer base and its thinking. See {IBM}, {fear ...
El Camino Bignum is /el' k*-mee'noh big'nuhm/ n. The road mundanely called El Camino Real, a road through the San Francisco peninsula that originally extended all the way down to Mexico City and many portions of which are still intact. Naviga...
El Camino Bignum2 is usually done relative to El Camino Real, which defines {logical} north and south even though it isn't really north-south many places. El Camino Real runs right past Stanford University and so is familiar to hackers. The...
El Camino Bignum3 is /ray-ahl'/) means `royal'; El Camino Real is `the royal road'. In the FORTRAN language, a `real' quantity is a number typically precise to 7 significant digits, and a `double precision' quantity is a larger floating-poi...
El Camino Bignum4 is significant digits (other languages have similar `real' types). When a hacker from MIT visited Stanford in 1976, he remarked what a long road El Camino Real was. Making a pun on `real', he started calling it `El Camino ...
El Camino Bignum5 is told that the road was hundreds of miles long, he renamed it `El Camino Bignum', and that name has stuck. (See {bignum}.)
elder days is n. The heroic age of hackerdom (roughly, pre-1980); the era of the {PDP-10}, {TECO}, {{ITS}}, and the ARPANET. This term has been rather consciously adopted from J. R. R. Tolkien's fantasy epic `The Lord of the Rings'. Compare ...
elegant is [from mathematical usage] adj. Combining simplicity, power, and a certain ineffable grace of design. Higher praise than `clever', `winning', or even {cuspy}.
elephantine is adj. Used of programs or systems that are both conspicuous {hog}s (owing perhaps to poor design founded on {brute force and ignorance}) and exceedingly {hairy} in source form. An elephantine program may be functional and even f...
elephantine2 is in bed with an elephant) it's tough to have around all the same (and, like a pachyderm, difficult to maintain). In extreme cases, hackers have been known to make trumpeting sounds or perform expressive proboscatory mime at the...
elephantine3 is semi-humorous. Compare `has the elephant nature' and the somewhat more pejorative {monstrosity}. See also {second-system effect} and {baroque}.
elevator controller is n. Another archetypal dumb embedded-systems application, like {toaster} (which superseded it). During one period (1983--84) in the deliberations of ANSI X3J11 (the C standardization committee) this was the canonical exa...
elevator controller2 is computation environment. "You can't require `printf(3)' to be part of the default runtime library --- what if you're targeting an elevator controller?" Elevator controllers became important rhetorical weapons on both ...
ELIZA effect is /*-li'z* *-fekt'/ [AI community] n. The tendency of humans to attach associations to terms from prior experience. For example, there is nothing magic about the symbol `+' that makes it well-suited to indicate addition; it's j...
ELIZA effect2 is Using `+' or `plus' to mean addition in a computer language is taking advantage of the ELIZA effect. This term comes from the famous ELIZA program, which simulated a Rogerian psychoanalyst by rephrasing many of the patient's ...
ELIZA effect3 is patient. It worked by simple pattern recognition and substitution of key words into canned phrases. It was so convincing, however, that there are many anecdotes about people becoming very emotionally caught up in dealing w...
ELIZA effect4 is tendency to attach to words meanings which the computer never put there. The ELIZA effect is a {Good Thing} when writing a programming language, but it can blind you to serious shortcomings when analyzing an Artificial Inte...
elvish is n. 1. The Tengwar of Feanor, a table of letterforms resembling the beautiful Celtic half-uncial hand of the `Book of Kells'. Invented and described by J. R. R. Tolkien in `The Lord of The Rings' as an orthography for his fictional ...
elvish2 is both visually and phonetically elegant) has long fascinated hackers (who tend to be interested by artificial languages in general). It is traditional for graphics printers, plotters, window systems, and the like to support a Fean...
elvish3 is also {elder days}. 2. By extension, any odd or unreadable typeface produced by a graphics device. 3. The typeface mundanely called `B"ocklin', an art-decoish display font.
EMACS is /ee'maks/ [from Editing MACroS] n. The ne plus ultra of hacker editors, a program editor with an entire LISP system inside it. It was originally written by Richard Stallman in {TECO} under {{ITS}} at the MIT AI lab, but the most wide...
EMACS2 is includes facilities to run compilation subprocesses and send and receive mail; many hackers spend up to 80% of their {tube time} inside it. Some versions running under window managers iconify as an overflowing kitchen sink, perhaps...
EMACS3 is not (yet) include. Indeed, some hackers find EMACS too heavyweight and {baroque} for their taste, and expand the name as `Escape Meta Alt Control Shift' to spoof its heavy reliance on keystrokes decorated with {bucky bits}. Other s...
EMACS4 is Constantly Swapping', `Eventually `malloc()'s All Computer Storage', and `EMACS Makes A Computer Slow' (see {{recursive acronym}}). See also {vi}.
email is /ee'mayl/ 1. n. Electronic mail automatically passed through computer networks and/or via modems over common-carrier lines. Contrast {snail-mail}, {paper-net}, {voice-net}. See {network address}. 2. vt. To send electronic mail. O...
email2 is listed in the OED; it means "embossed (with a raised pattern) or arranged in a net work". A use from 1480 is given. The word is derived from French `emmailleure', network.
emoticon is /ee-moh'ti-kon/ n. An ASCII glyph used to indicate an emotional state in email or news. Hundreds have been proposed, but only a few are in common use. These include (These may become more comprehensible if you tilt your head si...
emoticon2 is by far the most frequently encountered. Hyphenless forms of them are common on CompuServe, GEnie, and BIX; see also {bixie}. On {USENET}, `smiley' is often used as a generic term synonymous with {emoticon}, as well as specificall...
emoticon3 is that the emoticon was invented by one Scott Fahlman on the CMU {bboard} systems around 1980. He later wrote "I wish I had saved the original post, or at least recorded the date for posterity, but I had no idea that I was starting...
emoticon4 is world's communication channels." [GLS confirms that he remembers this original posting]. Note for the {newbie} Overuse of the smiley is a mark of loserhood! More than one per paragraph is a fairly sure sign that you've gone ov...
empire is n. Any of a family of military simulations derived from a game written by Peter Langston many years ago. There are five or six multi-player variants of varying degrees of sophistication, and one single-player version implemented for...
empire2 is available as MS-DOS freeware. All are notoriously addictive.
engine is n. 1. A piece of hardware that encapsulates some function but can't be used without some kind of {front end}. Today we have, especially, `print engine' the guts of a laser printer. 2. An analogous piece of software; notionally, one ...
engine2 is a `database engine'. The hackish senses of `engine' are actually close to its original, pre-Industrial-Revolution sense of a skill, clever device, or instrument (the word is cognate to `ingenuity'). This sense had not been comple...
engine3 is power-transducing machinery in Charles Babbage's time, which explains why he named the stored-program computer that he designed in 1844 the `Analytical Engine'.
English is 1. n.,obs. The source code for a program, which may be in any language, as opposed to the linkable or executable binary produced from it by a compiler. The idea behind the term is that to a real hacker, a program written in his fav...
English2 is readable as English. Usage used mostly by old-time hackers, though recognizable in context. 2. The official name of the database language used by the Pick Operating System, actually a sort of crufty interpreted BASIC with delusio...
English3 is {marketroid}s to say "Yes, and you can program our computers in English!" to ignorant {suit}s without quite running afoul of the truth-in-advertising laws.
enhancement is n. {Marketroid}-speak for a bug {fix}. This abuse of language is a popular and time-tested way to turn incompetence into increased revenue. A hacker being ironic would instead call the fix a {feature} --- or perhaps save some ...
ENQ is /enkw/ or /enk/ [from the ASCII mnemonic ENQuire for 0000101] An on-line convention for querying someone's availability. After opening a {talk mode} connection to someone apparently in heavy hack mode, one might type `SYN SYN ENQ?' (the...
ENQ2 is bytes), and expect a return of {ACK} or {NAK} depending on whether or not the person felt interruptible. Compare {ping}, {finger}, and the usage of `FOO?' listed under {talk mode}.
EOF is /E-O-F/ [acronym, `End Of File'] n. 1. [techspeak] Refers esp. to whatever {out-of-band} value is returned by C's sequential character-input functions (and their equivalents in other environments) when end of file has been reached. Thi...
EOF2 is V6 UNIX, but was originally 0. 2. Used by extension in non-computer contexts when a human is doing something that can be modeled as a sequential read and can't go further. "Yeah, I looked for a list of 360 mnemonics to post as a jo...
EOF3 is had was a {JCL} manual." See also {EOL}.
EOL is /E-O-L/ [End Of Line] n. Syn. for {newline}, derived perhaps from the original CDC6600 Pascal. Now rare, but widely recognized and occasionally used for brevity. Used in the example entry under {BNF}. See also {EOF}.
EOU is /E-O-U/ n. The mnemonic of a mythical ASCII control character (End Of User) that could make an ASR-33 Teletype explode on receipt. This parodied the numerous obscure delimiter and control characters left in ASCII from the days when it ...
EOU2 is teletypes than computers (e.g., FS, GS, RS, US, EM, SUB, ETX, and esp. EOT). It is worth remembering that ASR-33s were big, noisy mechanical beasts with a lot of clattering parts; the notion that one might explode was nowhere near a...
EOU3 is sitting in front of a {tube} or flatscreen today.
epoch is [UNIX prob. from astronomical timekeeping] n. The time and date corresponding to 0 in an operating system's clock and timestamp values. Under most UNIX versions the epoch is 000000 GMT, January 1, 1970. System time is measured in se...
epoch2 is problems may ensue when the clock wraps around (see {wrap around}), which is not necessarily a rare event; on systems counting 10 ticks per second, a signed 32-bit count of ticks is good only for 6.8 years. The 1-tick-per-second c...
epoch3 is 2038, assuming word lengths don't increase by then. See also {wall time}.
epsilon is [see {delta}] 1. n. A small quantity of anything. "The cost is epsilon." 2. adj. Very small, negligible; less than {marginal}. "We can get this feature for epsilon cost." 3. `within epsilon of' close enough to be indistinguishabl...
epsilon2 is closer than being `within delta of'. "That's not what I asked for, but it's within epsilon of what I wanted." Alternatively, it may mean not close enough, but very little is required to get it there "My program is within epsilo...
epsilon squared is n. A quantity even smaller than {epsilon}, as small in comparison to epsilon as epsilon is to something normal; completely negligible. If you buy a supercomputer for a million dollars, the cost of the thousand-dollar termin...
epsilon squared2 is of the ten-dollar cable to connect them is epsilon squared. Compare {lost in the underflow}, {lost in the noise}.
the era is Syn. {epoch}. Webster's Unabridged makes these words almost synonymous, but `era' usually connotes a span of time rather than a point in time. The {epoch} usage is recommended.
Eric Conspiracy is n. A shadowy group of mustachioed hackers named Eric first pinpointed as a sinister conspiracy by an infamous talk.bizarre posting ca. 1986; this was doubtless influenced by the numerous `Eric' jokes in the Monty Python oeuv...
Eric Conspiracy2 is more mustachioed Erics in hackerdom than the frequency of these three traits can account for unless they are correlated in some arcane way. Well-known examples include Eric Allman (he of the `Allman style' described under ...
Eric Conspiracy3 is NNTP); your editor has heard from about fourteen others by email, and the organization line `Eric Conspiracy Secret Laboratories' now emanates regularly from more than one site.
Eris is /e'ris/ n. The Greek goddess of Chaos, Discord, Confusion, and Things You Know Not Of; her name was latinized to Discordia and she was worshiped by that name in Rome. Not a very friendly deity in the Classical original, she was reinve...
Eris2 is creative anarchy starting in 1959 by the adherents of {Discordianism} and has since been a semi-serious subject of veneration in several `fringe' cultures, including hackerdom. See {Discordianism}, {Church of the SubGenius}.
erotics is /ee-ro'tiks/ n. [Helsinki University of Technology, Finland] n. English-language university slang for electronics. Often used by hackers in Helsinki, maybe because good electronics excites them and makes them warm.
essentials is n. Things necessary to maintain a productive and secure hacking environment. "A jug of wine, a loaf of bread, a 20-megahertz 80386 box with 8 meg of core and a 300-megabyte disk supporting full UNIX with source and X windows and...
essentials2 is Internet site, and thou."
evil is adj. As used by hackers, implies that some system, program, person, or institution is sufficiently maldesigned as to be not worth the bother of dealing with. Unlike the adjectives in the {cretinous}/{losing}/{brain-damaged} series, `e...
evil2 is design, but rather a set of goals or design criteria fatally incompatible with the speaker's. This is more an esthetic and engineering judgment than a moral one in the mainstream sense. "We thought about adding a {Blue Glue} inter...
factpacks/jargon-split.fact view on Meta::CPAN
flavor3 is (up, down, strange, charm, top, bottom) and three colors (red, blue, green) --- however, hackish use of `flavor' at MIT predated QCD. 3. The term for `class' (in the object-oriented sense) in the LISP Machine Flavors system. Tho...
flavor4 is (notably by the Common LISP CLOS facility), the term `flavor' is still used as a general synonym for `class' by some LISP hackers.
flavorful is adj. Full of {flavor}; esthetically pleasing. See {random} and {losing} for antonyms. See also the entries for {taste} and {elegant}.
flippy is /flip'ee/ n. A single-sided floppy disk altered for double-sided use by addition of a second write-notch, so called because it must be flipped over for the second side to be accessible. No longer common.
flowchart is [techspeak] n. An archaic form of visual control-flow specification employing arrows and `speech balloons' of various shapes. Hackers never use flowcharts, consider them extremely silly, and associate them with {COBOL} programmer...
flowchart2 is of life. This is because (from a hacker's point of view) they are no easier to read than code, are less precise, and tend to fall out of sync with the code (so that they either obfuscate it rather than explaining it or require ...
flowchart3 is the code). See also {pdl}, sense 3.
flower key is [Mac users] n. See {command key}.
flush is v. 1. To delete something, usually superfluous, or to abort an operation. "All that nonsense has been flushed." 2. [UNIX/C] To force buffered I/O to disk, as with an `fflush(3)' call. This is *not* an abort or deletion as in sense 1...
flush2 is leave at the end of a day's work (as opposed to leaving for a meal). "I'm going to flush now." "Time to flush." 4. To exclude someone from an activity, or to ignore a person. `Flush' was standard ITS terminology for aborting an ...
flush3 is would have been printed, but was not, as having been flushed. It is speculated that this term arose from a vivid image of flushing unwanted characters by hosing down the internal output buffer, washing the characters away before t...
flush4 is other hand, was propagated by the `fflush(3)' call in C's standard I/O library (though it is reported to have been in use among BLISS programmers at DEC and on Honeywell and IBM machines as far back as 1965). UNIX/C hackers find th...
Flyspeck 3 is n. Standard name for any font that is so tiny as to be unreadable (by analogy with such names as `Helvetica 10' for 10-point Helvetica). Legal boilerplate is usually printed in Flyspeck 3.
flytrap is n. See {firewall machine}.
FOAF is // [USENET] n. Acronym for `Friend Of A Friend'. The source of an unverified, possibly untrue story. This was not originated by hackers (it is used in Jan Brunvand's books on urban folklore), but is much better recognized on USENET a...
FOD is /fod/ v. [Abbreviation for `Finger of Death', originally a spell-name from fantasy gaming] To terminate with extreme prejudice and with no regard for other people. From {MUD}s where the wizard command `FOD <player>' results in the imme...
FOD2 is as punishment for obnoxious behavior. This migrated to other circumstances, such as "I'm going to fod the process that is burning all the cycles." Compare {gun}. In aviation, FOD means Foreign Object Damage, e.g., what happens when ...
FOD3 is bird in flight. Finger of Death is a distressingly apt description of what this does to the engine.
fold case is v. See {smash case}. This term tends to be used more by people who don't mind that their tools smash case. It also connotes that case is ignored but case distinctions in data processed by the tool in question aren't destroyed.
followup is n. On USENET, a {posting} generated in response to another posting (as opposed to a {reply}, which goes by email rather than being broadcast). Followups include the ID of the {parent message} in their headers; smart news-readers c...
followup2 is news in `conversation' sequence rather than order-of-arrival. See {thread}.
foo is /foo/ 1. interj. Term of disgust. 2. Used very generally as a sample name for absolutely anything, esp. programs and files (esp. scratch files). 3. First on the standard list of metasyntactic variables used in syntax examples. See al...
foo2 is {grault}, {garply}, {waldo}, {fred}, {plugh}, {xyzzy}, {thud}. {foo} is the {canonical} example of a `metasyntactic variable' --- a name used in examples and understood to stand for whatever thing is under discussion, or any random...
foo3 is discussion. To avoid confusion, hackers never use `foo' or other words like it as permanent names for anything. In filenames, a common convention is that any filename beginning `foo' is a scratch file that may be deleted at any time....
foo4 is When used in connection with `bar' it is generally traced to the WWII-era Army slang acronym FUBAR (`Fucked Up Beyond All Recognition'), later bowdlerized to {foobar}. (See also {FUBAR}). However, the use of the word `foo' itself ha...
foo5 is long history in comic strips and cartoons. The old "Smokey Stover" comic strips by Bill Holman often included the word `FOO', in particular on license plates of cars; allegedly, `FOO' and `BAR' also occurred in Walt Kelly's "Pogo" st...
foo6 is early version of Daffy Duck holds up a sign saying "SILENCE IS FOO!"; oddly, this seems to refer to some approving or positive affirmative use of foo. It is even possible that hacker usage actually springs from `FOO, Lampoons and Par...
foo7 is in September 1958; the byline read `C. Crumb' but this may well have been a sort-of pseudonym for noted weird-comix artist Robert Crumb. The title FOO was featured in large letters on the front cover. An old-time member reports that...
foo8 is Language', compiled at {TMRC} there was an entry that went something like this FOO The first syllable of the sacred chant phrase "FOO MANE PADME HUM." Our first obligation is to keep the foo counters turning. For more abou...
foo9 is Almost the entire AI staff was involved with TMRC, so it is not clear which group introduced the other to the word FOO. Very probably, hackish `foo' had no single origin and derives through all these channels from Yiddish `feh' and/o...
foobar is n. Another common metasyntactic variable; see {foo}. Hackers do *not* generally use this to mean {FUBAR} in either the slang or jargon sense.
fool is n. As used by hackers, specifically describes a person who habitually reasons from obviously or demonstrably incorrect premises and cannot be persuaded by evidence to do otherwise; it is not generally used in its other senses, i.e., to...
fool2 is to reason correctly, or a clown. Indeed, in hackish experience many fools are capable of reasoning all too effectively in executing their errors. See also {cretin}, {loser}, {fool file, the}.
fool file, the is [USENET] n. A notional repository of all the most dramatically and abysmally stupid utterances ever. There is a subgenre of {sig block}s that consists of the header "From the fool file" followed by some quote the poster wish...
fool file, the2 is dimwittery; for this to be really effective, the quote has to be so obviously wrong as to be laughable. More than one USENETter has achieved an unwanted notoriety by being quoted in this way.
Foonly is n. 1. The {PDP-10} successor that was to have been built by the Super Foonly project at the Stanford Artificial Intelligence Laboratory along with a new operating system. The intention was to leapfrog from the old DEC timesharing sy...
Foonly2 is bypassing TENEX which at that time was the ARPANET standard. ARPA funding for both the Super Foonly and the new operating system was cut in 1974. Most of the design team went to DEC and contributed greatly to the design of the PDP...
Foonly3 is formed by Dave Poole, one of the principal Super Foonly designers, and one of hackerdom's more colorful personalities. Many people remember the parrot which sat on Poole's shoulder and was a regular companion. 3. Any of the mach...
Foonly4 is the F-1 (a.k.a. Super Foonly), which was the computational engine used to create the graphics in the movie "TRON". The F-1 was the fastest PDP-10 ever built, but only one was ever made. The effort drained Foonly of its financial...
Foonly5 is smaller, slower, and much less expensive machines. Unfortunately, these ran not the popular {TOPS-20} but a TENEX varient called Foonex; this seriously limited their market. Also, the machines shipped were actually wire-wrapped en...
Foonly6 is attention from more than usually competent site personnel, and thus had significant reliability problems. Poole's legendary temper and unwillingness to suffer fools gladly did not help matters. By the time of the Jupiter project c...
Foonly7 is build another F-1 was eclipsed by the {Mars}, and the company never quite recovered. See the {Mars} entry for the continuation and moral of this story.
footprint is n. 1. The floor or desk area taken up by a piece of hardware. 2. [IBM] The audit trail (if any) left by a crashed program (often in plural, `footprints'). See also {toeprint}.
for free is adj. Said of a capability of a programming language or hardware equipment that is available by its design without needing cleverness to implement "In APL, we get the matrix operations for free." "And owing to the way revisions are...
for free2 is trees for free." Usually it refers to a serendipitous feature of doing things a certain way (compare {big win}), but it may refer to an intentional but secondary feature.
for the rest of us is [from the Mac slogan "The computer for the rest of us"] adj. 1. Used to describe a {spiffy} product whose affordability shames other comparable products, or (more often) used sarcastically to describe {spiffy} but very ov...
for the rest of us2 is with a limited interface, deliberately limited capabilities, non-orthogonality, inability to compose primitives, or any other limitation designed to not `confuse' a na"ive user. This places an upper bound on how far tha...
for the rest of us3 is get in the way of the task instead of helping accomplish it. Used in reference to Macintosh software which doesn't provide obvious capabilities because it is thought that the poor lusers might not be able to handle them...
for the rest of us4 is third-party reference; thus, "Yes, it is an attractive program, but it's designed for The Rest Of Them" means a program that superficially looks neat but has no depth beyond the surface flash. See also {WIMP environme...
fora is pl.n. Plural of {forum}.
foreground is [UNIX] vt. To foreground a task is to bring it to the top of one's {stack} for immediate processing, and hackers often use it in this sense for non-computer tasks. "If your presentation is due next week, I guess I'd better foregr...
foreground2 is Technically, on a time-sharing system, a task executing in foreground is one able to accept input from and return output to the user; oppose {background}. Nowadays this term is primarily associated with {{UNIX}}, but it appears...
foreground3 is OS/360. Normally, there is only one foreground task per terminal (or terminal window); having multiple processes simultaneously reading the keyboard is a good way to {lose}.
forked is [UNIX; prob. influenced by a mainstream expletive] adj. Terminally slow, or dead. Originated when one system slowed to incredibly bad speeds because of a process recursively spawning copies of itself (using the UNIX system call `for...
Fortrash is /for'trash/ n. Hackerism for the FORTRAN language, referring to its primitive design, gross and irregular syntax, limited control constructs, and slippery, exception-filled semantics.
fortune cookie is [UNIX] n. A random quote, item of trivia, joke, or maxim printed to the user's tty at login time or (less commonly) at logout time. Items from this lexicon have often been used as fortune cookies. See {cookie file}.
forum is n. [USENET, GEnie CI$; pl. `fora' or `forums'] Any discussion group accessible through a dial-in {BBS}, a {mailing list}, or a {newsgroup} (see {network, the}). A forum functions much like a bulletin board; users submit {posting}s ...
forum2 is Contrast real-time chat via {talk mode} or point-to-point personal {email}.
fossil is n. 1. In software, a misfeature that becomes understandable only in historical context, as a remnant of times past retained so as not to break compatibility. Example the retention of octal as default base for string escapes in {C}, ...
fossil2 is to ASCII and modern byte-addressable architectures. See {dusty deck}. 2. More restrictively, a feature with past but no present utility. Example the force-all-caps (LCASE) bits in the V7 and {BSD} UNIX tty driver, designed for ...
fossil3 is of the usual backward-compatibility goal, this functionality has actually been expanded and renamed in some later {USG UNIX} releases as the IUCLC and OLCUC bits. 3. The FOSSIL (Fido/Opus/Seadog Standard Interface Level) driver s...
fossil4 is replace the {brain-dead} routines in the IBM PC ROMs. Fossils are used by most MS-DOS {BBS} software in lieu of programming the {bare metal} of the serial ports, as the ROM routines do not support interrupt-driven operation or setti...
fossil5 is specification allows additional functionality to be hooked in, drivers that use the {hook} but do not provide serial-port access themselves are named with a modifier, as in `video fossil'.
four-color glossies is 1. Literature created by {marketroid}s that allegedly containing technical specs but which is in fact as superficial as possible without being totally {content-free}. "Forget the four-color glossies, give me the tech ref...
four-color glossies2 is superficiality even when the material is printed on ordinary paper in black and white. Four-color-glossy manuals are *never* useful for finding a problem. 2. [rare] Applied by extension to manual pages that don't con...
four-color glossies3 is program doesn't produce the expected or desired output.
fragile is adj. Syn {brittle}.
fred is n. 1. The personal name most frequently used as a metasyntactic variable (see {foo}). Allegedly popular because it's easy for a non-touch-typist to type on a standard QWERTY keyboard. Unlike {J. Random Hacker} or `J. Random Loser', ...
fred2 is (but see {Mbogo, Dr. Fred}). 2. An acronym for `Flipping Ridiculous Electronic Device'; other F-verbs may be substituted for `flipping'.
frednet is /fred'net/ n. Used to refer to some {random} and uncommon protocol encountered on a network. "We're implementing bridging in our router to solve the frednet problem."
freeware is n. Free software, often written by enthusiasts and distributed by users' groups, or via electronic mail, local bulletin boards, {USENET}, or other electronic media. At one time, `freeware' was a trademark of Andrew Fluegelman, the...
freeware2 is program PC-TALK III. It wasn't enforced after his mysterious disappearance and presumed death in 1984. See {shareware}.
freeze is v. To lock an evolving software distribution or document against changes so it can be released with some hope of stability. Carries the strong implication that the item in question will `unfreeze' at some future date. "OK, fix that ...
freeze2 is are more specific constructions on this. A `feature freeze', for example, locks out modifications intended to introduce new features; a `code freeze' connotes no more changes at all. At Sun Microsystems and elsewhere, one may also ...
freeze3 is an almost-but-not-quite frozen state.
fried is adj. 1. Non-working due to hardware failure; burnt out. Especially used of hardware brought down by a `power glitch' (see {glitch}), {drop-outs}, a short, or some other electrical event. (Sometimes this literally happens to electroni...
fried2 is burn out and transformers can melt down, emitting noxious smoke. However, this term is also used metaphorically.) Compare {frotzed}. 2. Of people, exhausted. Said particularly of those who continue to work in such a state. Often...
fried3 is know that fix destroyed the file system, but I was fried when I put it in." Esp. common in conjunction with `brain' "My brain is fried today, I'm very short on sleep."
friode is /fri'ohd/ [TMRC] n. A reversible (that is, fused or blown) diode. Compare {fried}.
fritterware is n. An excess of capability that serves no productive end. The canonical example is font-diddling software on the Mac (see {macdink}); the term describes anything that eats huge amounts of time for quite marginal gains in functi...
frob is /frob/ 1. n. [MIT] The {TMRC} definition was "FROB = a protruding arm or trunnion"; by metaphoric extension, a `frob' is any random small thing; an object that you can comfortably hold in one hand; something you can frob. See {frobnit...
frob2 is {frobnicate}. 3. [from the {MUD} world] A command on some MUDs that changes a player's experience level (this can be used to make wizards); also, to request {wizard} privileges on the `professional courtesy' grounds that one is a w...
frobnicate is /frob'ni-kayt/ vt. [Poss. derived from {frobnitz}, and usually abbreviated to {frob}, but `frobnicate' is recognized as the official full form.] To manipulate or adjust, to tweak. One frequently frobs bits or other 2-state device...
frobnicate2 is (that is, flip it), but also "Stop frobbing that clasp; you'll break it". One also sees the construction `to frob a frob'. See {tweak} and {twiddle}. Usage frob, twiddle, and tweak sometimes connote points along a continuum....
frobnicate3 is `twiddle' connotes gross manipulation, often a coarse search for a proper setting; `tweak' connotes fine-tuning. If someone is turning a knob on an oscilloscope, then if he's carefully adjusting it, he is probably tweaking it; ...
frobnicate4 is screen, he is probably twiddling it; but if he's just doing it because turning a knob is fun, he's frobbing it. The variant `frobnosticate' has been recently reported.
frobnitz is /frob'nits/, pl. `frobnitzem' /frob'nit-zm/ or `frobni' /frob'ni/ n. An unspecified physical object, a widget. Also refers to electronic black boxes. This rare form is usually abbreviated to `frotz', or more commonly to {frob}. ...
frobnitz2 is `frobule' (/frob'yool/). Starting perhaps in 1979, `frobozz' /fruh-boz'/ (plural `frobbotzim' /fruh-bot'zm/) has also become very popular, largely through its exposure as a name via {Zork}. These can also be applied to nonphys...
frog is alt. `phrog' 1. interj. Term of disgust (we seem to have a lot of them). 2. Used as a name for just about anything. See {foo}. 3. n. Of things, a crock. 4. n. Of people, somewhere in between a turkey and a toad. 5. `froggy' adj. S...
frog2 is milder. "This froggy program is taking forever to run!"front end n. 1. An intermediary computer that does set-up and filtering for another (usually more powerful but less friendly) machine (a `back end'). 2. What you're talking to w...
frog3 is is making replies without paying attention. "Look at the dancing elephants!" "Uh-huh." "Do you know what I just said?" "Sorry, you were talking to the front end." See also {fepped out}. 3. Software that provides an interface to...
frog4 is as user-friendly. Probably from analogy with hardware front-ends (see sense 1) that interfaced with mainframes.
frotz is /frots/ 1. n. See {frobnitz}. 2. `mumble frotz' An interjection of very mild disgust.
frotzed is /frotst/ adj. {down} because of hardware problems. Compare {fried}. A machine that is merely frotzed may be fixable without replacing parts, but a fried machine is more seriously damaged.
frowney is n. (alt. `frowney face') See {emoticon}.
fry is 1. vi. To fail. Said especially of smoke-producing hardware failures. More generally, to become non-working. Usage never said of software, only of hardware and humans. See {fried}, {magic smoke}. 2. vt. To cause to fail; to {roach}...
fry2 is Never used of software or humans, but compare {fried}.
FTP is /F-T-P/, *not* /fit'ip/ 1. [techspeak] n. The File Transfer Protocol for transmitting files between systems on the Internet. 2. vt. To {beam} a file using the File Transfer Protocol. 3. Sometimes used as a generic even for file transf...
FTP2 is `Wuthering Heights' ftp'd from uunet."
FUBAR is n. The Failed UniBus Address Register in a VAX. A good example of how jargon can occasionally be snuck past the {suit}s; see {foobar}.
fuck me harder is excl. Sometimes uttered in response to egregious misbehavior, esp. in software, and esp. of misbehaviors which seem unfairly persistent (as though designed in by the imp of the perverse). Often theatrically elaborated "Aiigh...
fuck me harder2 is curare-tipped wrought-iron fence *and no lubricants*!" The phrase is sometimes heard abbreviated `FMH' in polite company. [This entry is an extreme example of the hackish habit of coining elaborate and evocative terms for ...
fuck me harder3 is parody of mainstream expletives that has become a running gag in part of the hacker culture; it illustrates the hackish tendency to turn any situation, even one of extreme frustration, into an intellectual game (the point be...
fuck me harder4 is long-winded description of the most anatomically absurd mental image possible --- the short forms implicitly allude to all the ridiculous long forms ever spoken). Scatological language is actually relatively uncommon among ...
fuck me harder5 is whether this entry ought to be included at all. As it reflects a live usage recognizably peculiar to the hacker culture, we feel it is in the hackish spirit of truthfulness and opposition to all forms of censorship to rec...
FUD is /fuhd/ n. Defined by Gene Amdahl after he left IBM to found his own company "FUD is the fear, uncertainty, and doubt that IBM sales people instill in the minds of potential customers who might be considering [Amdahl] products." The ide...
FUD2 is with safe IBM gear rather than with competitors' equipment. This was traditionally done by promising that Good Things would happen to people who stuck with IBM, but Dark Shadows loomed over the future of competitors' equipment or so...
FUD wars is /fuhd worz/ n. [from {FUD}] Political posturing engaged in by hardware and software vendors ostensibly committed to standardization but actually willing to fragment the market to protect their own shares. The UNIX International vs...
fudge is 1. vt. To perform in an incomplete but marginally acceptable way, particularly with respect to the writing of a program. "I didn't feel like going through that pain and suffering, so I fudged it --- I'll fix it later." 2. n. The res...
fudge factor is n. A value or parameter that is varied in an ad hoc way to produce the desired result. The terms `tolerance' and {slop} are also used, though these usually indicate a one-sided leeway, such as a buffer that is made larger than...
fudge factor2 is how large it needs to be, and it is better to waste a little space than to lose completely for not having enough. A fudge factor, on the other hand, can often be tweaked in more than one direction. A good example is the `fuz...
fudge factor3 is calculations two numbers being compared for equality must be allowed to differ by a small amount; if that amount is too small, a computation may never terminate, while if it is too large, results will be needlessly inaccurate....
fudge factor4 is incorrectly by programmers who don't fully understand their import. See also {coefficient of X}.
fuel up is vi. To eat or drink hurriedly in order to get back to hacking. "Food-p?" "Yeah, let's fuel up." "Time for a {great-wall}!" See also {{oriental food}}.
fuggly is /fuhg'lee/ adj. Emphatic form of {funky}; funky + ugly). Unusually for hacker jargon, this may actually derive from black street-jive. To say it properly, the first syllable should be growled rather than spoken. Usage humorous. "...
fuggly2 is that printer driver is *fuggly*." See also {wonky}.
funky is adj. Said of something that functions, but in a slightly strange, klugey way. It does the job and would be difficult to change, so its obvious non-optimality is left alone. Often used to describe interfaces. The more bugs something...
funky2 is workarounds are easier, the funkier it is. {TECO} and UUCP are funky. The Intel i860's exception handling is extraordinarily funky. Most standards acquire funkiness as they age. "The new mailer is installed, but is still somewhat ...
funky3 is try resubmitting it." "This UART is pretty funky. The data ready line is active-high in interrupt mode and active-low in DMA mode." See {fuggly}.
funny money is n. 1. Notional `dollar' units of computing time and/or storage handed to students at the beginning of a computer course; also called `play money' or `purple money' (in implicit opposition to real or `green' money). When your fu...
funny money2 is you needed to go to a professor to get more. Fortunately, the plunging cost of timesharing cycles has made this less common. The amounts allocated were almost invariably too small, even for the non-hackers who wanted to slide...
factpacks/jargon-split.fact view on Meta::CPAN
same-day service2 is {well-behaved}. See also {PC-ism}.
sandbender is [IBM] n. A person involved with silicon lithography and the physical design of chips. Compare {ironmonger}, {polygon pusher}.
sandbox is n. (or `sandbox, the') Common term for the R&D department at many software and computer companies (where hackers in commercial environments are likely to be found). Half-derisive, but reflects the truth that research is a form of c...
sanity check is n. 1. The act of checking a piece of code (or anything else, e.g., a USENET posting) for completely stupid mistakes. Implies that the check is to make sure the author was sane when it was written; e.g., if a piece of scientific...
sanity check2 is was giving unexpected results, one might first look at the nesting of parentheses or the coding of the formula, as a {sanity check}, before looking at the more complex I/O or data structure manipulation routines, much less the...
sanity check3 is 2. A run-time test, either validating input or ensuring that the program hasn't screwed up internally (producing an inconsistent value or state).
Saturday night special is [from police slang for a cheap handgun] n. A program or feature kluged together during off hours, under a deadline, and in response to pressure from a {salescritter}. Such hacks are dangerously unreliable, but all too...
say is vt. 1. To type to a terminal. "To list a directory verbosely, you have to say `ls -l'." Tends to imply a {newline}-terminated command (a `sentence'). 2. A computer may also be said to `say' things to you, even if it doesn't have a ...
say2 is terminal in response to your commands. Hackers find it odd that this usage confuses {mundane}s.
science-fiction fandom is n. Another voluntary subculture having a very heavy overlap with hackerdom; most hackers read SF and/or fantasy fiction avidly, and many go to `cons' (SF conventions) or are involved in fandom-connected activities suc...
science-fiction fandom2 is Some hacker jargon originated in SF fandom; see {defenestration}, {great-wall}, {cyberpunk}, {h}, {ha ha only serious}, {IMHO}, {mundane}, {neep-neep}, {Real Soon Now}. Additionally, the jargon terms {cowboy}, {cy...
science-fiction fandom3 is {virus}, {wetware}, {wirehead}, and {worm} originated in SF stories.
scram switch is [from the nuclear power industry] n. An emergency-power-off switch (see {Big Red Switch}), esp. one positioned to be easily hit by evacuating personnel. In general, this is *not* something you {frob} lightly; these often ini...
scram switch2 is and are installed in a {dinosaur pen} for use in case of electrical fire or in case some luckless {field servoid} should put 120 volts across himself while {Easter egging}.
scratch is 1. [from `scratchpad'] adj. Describes a data structure or recording medium attached to a machine for testing or temporary-use purposes; one that can be {scribble}d on without loss. Usually in the combining forms `scratch memory', ...
scratch2 is tape', `scratch volume'. See {scratch monkey}. 2. [primarily IBM] vt. To delete (as in a file).
scratch monkey is n. As in "Before testing or reconfiguring, always mount a {scratch monkey}", a proverb used to advise caution when dealing with irreplaceable data or devices. Used to refer to any scratch volume hooked to a computer during a...
scratch monkey2 is precious resource or data that might otherwise get trashed. This term preserves the memory of Mabel, the Swimming Wonder Monkey, star of a biological research program at the University of Toronto ca. 1986. Mabel was not (...
scratch monkey3 is university had spent years teaching her how to swim, breathing through a regulator, in order to study the effects of different gas mixtures on her physiology. Mabel suffered an untimely demise one day when DEC {PM}ed the PD...
scratch monkey4 is {provocative maintainance}). It is recorded that, after calming down an understandably irate customer sufficiently to ascertain the facts of the matter, a DEC troubleshooter called up the {field circus} manager responsible ...
scratch monkey5 is all the consequences to humans were so amusing; the sysop of the machine in question was nearly thrown in jail at the behest of certain clueless droids at the local `humane' society. The moral is clear When in doubt, always...
screw is [MIT] n. A {lose}, usually in software. Especially used for user-visible misbehavior caused by a bug or misfeature. This use has become quite widespread outside MIT.
screwage is /skroo'*j/ n. Like {lossage} but connotes that the failure is due to a designed-in misfeature rather than a simple inadequacy or a mere bug.
scribble is n. To modify a data structure in a random and unintentionally destructive way. "Bletch! Somebody's disk-compactor program went berserk and scribbled on the i-node table." "It was working fine until one of the allocation routines ...
scribble2 is {trash}; compare {mung}, which conveys a bit more intention, and {mangle}, which is more violent and final.
scrog is /skrog/ [Bell Labs] vt. To damage, trash, or corrupt a data structure. "The list header got scrogged." Also reported as `skrog', and ascribed to the comic strip "The Wizard of Id". Equivalent to {scribble} or {mangle}.
scrool is /skrool/ [from the pioneering Roundtable chat system in Houston ca. 1984; prob. originated as a typo for `scroll'] n. The log of old messages, available for later perusal or to help one get back in synch with the conversation. It was...
scrool2 is because an early version of the roundtable software had a bug where it would dump all 8K of scrool on a user's terminal.
scrozzle is /skroz'l/ vt. Used when a self-modifying code segment runs incorrectly and corrupts the running program or vital data. "The damn compiler scrozzled itself again!"
SCSI is [Small Computer System Interface] n. A bus-independent standard for system-level interfacing between a computer and intelligent devices. Typically annotated in literature with `sexy' (/sek'see/), `sissy' (/sis'ee/), and `scuzzy' (/sku...
SCSI2 is being the overwhelmingly predominant form, much to the dismay of the designers and their marketing people. One can usually assume that a person who pronounces it /S-C-S-I/ is clueless.
search-and-destroy mode is n. Hackerism for the search-and-replace facility in an editor, so called because an incautiously chosen match pattern can cause {infinite} damage.
second-system effect is n. (sometimes, more euphoniously, `second-system syndrome') When one is designing the successor to a relatively small, elegant, and successful system, there is a tendency to become grandiose in one's success and design ...
second-system effect2 is The term was first used by Fred Brooks in his classic `The Mythical Man-Month Essays on Software Engineering' (Addison-Wesley, 1975; ISBN 0-201-00650-2). It described the jump from a set of nice, simple operating sy...
second-system effect3 is 360 series. A similar effect can also happen in an evolving system; see {Brooks's Law}, {creeping elegance}, {creeping featurism}. See also {{Multics}}, {OS/2}, {X}, {software bloat}. This version of the jargon lex...
second-system effect4 is much truth for comfort) as an example of second-system effect run amok on jargon-1....
secondary damage is n. When a fatal error occurs (esp. a {segfault}) the immediate cause may be that a pointer has been trashed due to a previous {fandango on core}. However, this fandango may have been due to an *earlier* fandango, so no a...
secondary damage2 is the damage occurred. "The data structure was clobbered, but it was secondary damage." By extension, the corruption resulting from N cascaded fandangoes on core is `Nth-level damage'. There is at least one case on record...
secondary damage3 is actually dug up the underlying bug behind an instance of seventh-level damage! The hacker who accomplished this near-superhuman feat was presented with an award by his fellows.
security through obscurity is n. A name applied by hackers to most OS vendors' favorite way of coping with security holes --- namely, ignoring them and not documenting them and trusting that nobody will find out about them and that people who ...
security through obscurity2 is This never works for long and occasionally sets the world up for debacles like the {RTM} worm of 1988, but once the brief moments of panic created by such events subside most vendors are all too willing to turn o...
security through obscurity3 is fixing the bugs would siphon off the resources needed to implement the next user-interface frill on marketing's wish list --- and besides, if they started fixing security bugs customers might begin to *expect* it...
security through obscurity4 is merchantability gave them some sort of *right* to a system with fewer holes in it than a shotgunned Swiss cheese, and then where would we be? Historical note It is claimed (with dissent from {{ITS}} fans who sa...
security through obscurity5 is in a positive sense) that this term was first used in the USENET newsgroup in comp.sys.apollo during a campaign to get HP/Apollo to fix security problems in its UNIX-{clone} Aegis/DomainOS. They didn't change ...
SED is [TMRC, from `Light-Emitting Diode'] /S-E-D/ n. Smoke-emitting diode. A {friode} that lost the war. See {LER}.
segfault is n.,vi. Syn. {segment}, {seggie}.
seggie is /seg'ee/ [UNIX] n. Shorthand for {segmentation fault} reported from Britain.
segment is /seg'ment/ vi. To experience a {segmentation fault}. Confusingly, this is often pronounced more like the noun `segment' than like mainstream v. segment; this is because it is actually a noun shorthand that has been verbed.
segmentation fault is n. [UNIX] 1. An error in which a running program attempts to access memory not allocated to it and {core dump}s with a segmentation violation error. 2. To lose a train of thought or a line of reasoning. Also uttered as ...
segv is /seg'vee/ n.,vi. Yet another synonym for {segmentation fault} (actually, in this case, `segmentation violation').
self-reference is n. See {self-reference}.
selvage is /sel'v*j/ [from sewing] n. See {chad} (sense 1).
semi is /se'mee/ or /se'mi/ 1. n. Abbreviation for `semicolon', when speaking. "Commands to {grind} are prefixed by semi-semi-star" means that the prefix is `;;*', not 1/4 of a star. 2. A prefix used with words such as `immediately' as a q...
semi2 is "Semi-immediately." (That is, maybe not for an hour.) "We did consider that possibility semi-seriously." See also {infinite}.
semi-infinite is n. See {infinite}.
senior bit is [IBM] n. Syn. {meta bit}.
server is n. A kind of {daemon} that performs a service for the requester and which often runs on a computer other than the one on which the server runs. A particularly common term on the Internet, which is rife with `name servers', `domain s...
SEX is /seks/ [Sun Users' Group & elsewhere] n. 1. Software EXchange. A technique invented by the blue-green algae hundreds of millions of years ago to speed up their evolution, which had been terribly slow up until then. Today, SEX parties ...
SEX2 is course, these are no longer limited to exchanges of genetic software). In general, SEX parties are a {Good Thing}, but unprotected SEX can propagate a {virus}. See also {pubic directory}. 2. The rather Freudian mnemonic often used ...
SEX3 is the PDP-11 and many other architectures. DEC's engineers nearly got a PDP-11 assembler that used the `SEX' mnemonic out the door at one time, but (for once) marketing wasn't asleep and forced a change. That wasn't the last time th...
SEX4 is 8086 Primer', who was one of the original designers of the 8086, noted that there was originally a `SEX' instruction on that processor, too. He says that Intel management got cold feet and decreed that it be changed, and thus the in...
SEX5 is (depending on what was being extended). Amusingly, the Intel 8048 (the microcontroller used in IBM PC keyboards) is also missing straight `SEX' but has logical-or and logical-and instructions `ORL' and `ANL'. The Motorola 6809, used ...
SEX6 is actually had an official `SEX' instruction; the 6502 in the Apple II it competed with did not. British hackers thought this made perfect mythic sense; after all, it was commonly observed, you could have sex with a dragon, but you can'...
sex changer is n. Syn. {gender mender}.
shareware is /sheir'weir/ n. {Freeware} (sense 1) for which the author requests some payment, usually in the accompanying documentation files or in an announcement made by the software itself. Such payment may or may not buy additional suppor...
shelfware is /shelfweir/ n. Software purchased on a whim (by an individual user) or in accordance with policy (by a corporation or government agency), but not actually required for any particular use. Therefore, it often ends up on some shelf.
shell is [orig. {{Multics}} techspeak, widely propagated via UNIX] n. 1. [techspeak] The command interpreter used to pass commands to an operating system; so called because it is the part of the operating system that interfaces with the outsid...
shell2 is program that mediates access to a special resource or {server} for convenience, efficiency, or security reasons; for this meaning, the usage is usually `a shell around' whatever. This sort of program is also called a `wrapper'.
shell out is [UNIX] n. To spawn an interactive {subshell} from within a program (e.g., a mailer or editor). "Bang foo runs foo in a subshell, while bang alone shells out."
shift left logical is [from any of various machines' instruction sets] 1. vi. To move oneself to the left (right). To move out of the way. 2. imper. "Get out of that (my) seat! You can shift to that empty one to the left (right)." Often ...
shift left logical2 is instead of `shift left'. Sometimes heard as LSH /lish/, from the {PDP-10} instruction set. See {Programmer's Cheer}.
shitogram is /shit'oh-gram/ n. A *really* nasty piece of email. Compare {nastygram}, {flame}.
short card is n. A half-length IBM PC expansion card or adapter that will fit in one of the two short slots located towards the right rear of a standard chassis (tucked behind the floppy disk drives). See also {tall card}.
shotgun debugging is n. The software equivalent of {Easter egging}; the making of relatively undirected changes to software in the hope that a bug will be perturbed out of existence. This almost never works, and usually introduces more bugs.
showstopper is n. A hardware or (especially) software bug that makes an implementation effectively unusable; one that absolutely has to be fixed before development can go on. Opposite in connotation from its original theatrical use, which ref...
shriek is n. See {excl}. Occasional CMU usage, also in common use among APL fans and mathematicians, especially category theorists.
Shub-Internet is /shuhb in't*r-net/ [MUD from H. P. Lovecraft's evil fictional deity `Shub-Niggurath', the Black Goat with a Thousand Young] n. The harsh personification of the Internet, Beast of a Thousand Processes, Eater of Characters, Ava...
Shub-Internet2 is the hideous multi-tendriled entity formed of all the manifold connections of the net. A sect of MUDders worships Shub-Internet, sacrificing objects and praying for good connections. To no avail --- its purpose is malign and...
Shub-Internet3 is slowdown. Often heard as in "Freela casts a tac nuke at Shub-Internet for slowing her down." (A forged response often follows along the lines of "Shub-Internet gulps down the tac nuke and burps happily.") Also cursed by use...
Shub-Internet4 is slows down. The dread name of Shub-Internet is seldom spoken aloud, as it is said that repeating it three times will cause the being to wake, deep within its lair beneath the Pentagon.
sidecar is n. 1. Syn. {slap on the side}. Esp. used of add-ons for the late and unlamented IBM PCjr. 2. The IBM PC compatibility box that could be bolted onto the side of an Amiga. Designed and produced by Commodore, it broke all of the com...
sidecar2 is other peripherals, it was by {magic}.
sig block is /sig blok/ [UNIX often written `.sig' there] n. Short for `signature', used specifically to refer to the electronic signature block that most UNIX mail- and news-posting software will {automagically} append to outgoing mail and ne...
sig block2 is quite an art form, including an ASCII logo or one's choice of witty sayings (see {sig quote}, {fool file}); but many consider large sigs a waste of {bandwidth}, and it has been observed that the size of one's sig block is usual...
sig block3 is and level of prestige on the net.
sig quote is /sig kwoht/ [USENET] n. A maxim, quote, proverb, joke, or slogan embedded in one's {sig block} and intended to convey something of one's philosophical stance, pet peeves, or sense of humor. "Calm down, it's only ones and zeroes."
signal-to-noise ratio is [from analog electronics] n. Used by hackers in a generalization of its technical meaning. `Signal' refers to useful information conveyed by some communications medium, and `noise' to anything else on that medium. He...
signal-to-noise ratio2 is paying attention to the medium in question. Figures for such metaphorical ratios are never given. The term is most often applied to {USENET} newsgroups during {flame war}s. Compare {bandwidth}. See also {coefficient...
silicon is n. Hardware, esp. ICs or microprocessor-based computer systems (compare {iron}). Contrasted with software. See also {sandbender}.
silicon foundry is n. A company that {fab}s chips to the designs of others. As of the late 1980s, the combination of silicon foundries and good computer-aided design software made it much easier for hardware-designing startup companies to com...
silicon foundry2 is silicon foundry is that the distance from the actual chip-fabrication processes reduces designers' control of detail. This is somewhat analogous to the use of {HLL}s versus coding in assembler.
silly walk is [from Monty Python's Flying Circus] vi. 1. A ridiculous procedure required to accomplish a task. Like {grovel}, but more {random} and humorous. "I had to silly-walk through half the /usr directories to find the maps file." 2. ...
silo is n. The FIFO input-character buffer in an RS-232 line card. So called from DEC terminology used on DH and DZ line cards for the VAX and PDP-11, presumably because it was a storage space for fungible stuff that you put in the top and to...
Silver Book is n. Jensen and Wirth's infamous `Pascal User Manual and Report', so called because of the silver cover of the widely distributed Springer-Verlag second edition of 1978 (ISBN 0-387-90144-2). See {{book titles}}, {Pascal}.
since time T equals minus infinity is adj. A long time ago; for as long as anyone can remember; at the time that some particular frob was first designed. Usually the word `time' is omitted. See also {time T}.
sitename is /sit'naym/ [UNIX/Internet] n. The unique electronic name of a computer system, used to identify it in UUCP mail, USENET, or other forms of electronic information interchange. The folklore interest of sitenames stems from the creat...
sitename2 is Interpreting a sitename is not unlike interpreting a vanity license plate; one has to mentally unpack it, allowing for mono-case and length restrictions and the lack of whitespace. Hacker tradition deprecates dull, institutiona...
sitename3 is and clever coinages (except that it is considered appropriate for the official public gateway machine of an organization to bear the organization's name or acronym). Mythological references, cartoon characters, animal names, an...
sitename4 is probably the most popular sources for sitenames (in roughly descending order). The obligatory comment when discussing these is Harris's Lament "All the good ones are taken!" See also {network address}.
skrog is v. Syn. {scrog}.
skulker is n. Syn. {prowler}.
slap on the side is n. (also called a {sidecar}, or abbreviated `SOTS'.) A type of external expansion hardware marketed by computer manufacturers (e.g., Commodore for the Amiga 500/1000 series and IBM for the hideous failure called `PCjr'). ...
slap on the side2 is as memory, hard drive controllers, and conventional expansion slots.
slash is n. Common name for the slant (`/', ASCII 0101111) character. See {ASCII} for other synonyms.
sleep is vi. 1. [techspeak] On a timesharing system, a process that relinquishes its claim on the scheduler until some given event occurs or a specified time delay elapses is said to `go to sleep'. 2. In jargon, used very similarly to v. {blo...
sleep2 is on'. Often used to indicate that the speaker has relinquished a demand for resources until some (possibly unspecified) external event "They can't get the fix I've been asking for into the next release, so I'm going to sleep on it ...
slim is n. A small, derivative change (e.g., to code).
slop is n. 1. A one-sided {fudge factor}, that is, an allowance for error but in only one of two directions. For example, if you need a piece of wire 10 feet long and have to guess when you cut it, you make very sure to cut it too long, by a ...
slop2 is short by even a little bit, because you can always cut off the slop but you can't paste it back on again. When discrete quantities are involved, slop is often introduced to avoid the possibility of being on the losing side of a {fence...
slop3 is code generated by a compiler over the size of equivalent assembler code produced by {hand-hacking}; i.e., the space (or maybe time) you lose because you didn't do it yourself. This number is often used as a measure of the goodness ...
slop4 is 10% is usually acceptable. With modern compiler technology, esp. on RISC machines, the compiler's slop may actually be *negative*; that is, humans may be unable to generate code as good. This is one of the reasons assembler program...
slopsucker is /slop'suhk-r/ n. A lowest-priority task that must wait around until everything else has `had its fill' of machine resources. Only when the machine would otherwise be idle is the task allowed to `suck up the slop'. Also called a...
slopsucker2 is slopsucker hunts for large prime numbers. Compare {background}.
slurp is vt. To read a large data file entirely into {core} before working on it. This may be contrasted with the strategy of reading a small piece at a time, processing it, and then reading the next piece. "This program slurps in a 1K-by-1K...
smart is adj. Said of a program that does the {Right Thing} in a wide variety of complicated circumstances. There is a difference between calling a program smart and calling it intelligent; in particular, there do not exist any intelligent pr...
smart2 is {robust} (smart programs can be {brittle}).
smart terminal is n. A terminal that has enough computing capability to render graphics or to offload some kind of front-end processing from the computer it talks to. The development of workstations and personal computers has made this term a...
smart terminal2 is semi-obsolescent, but one may still hear variants of the phrase `act like a smart terminal' used to describe the behavior of workstations or PCs with respect to programs that execute almost entirely out of a remote {server}'...
smart terminal3 is Compare {glass tty}. There is a classic quote from Rob Pike (inventor of the {blit} terminal) "A smart terminal is not a smart*ass* terminal, but rather a terminal you can educate." This illustrates a common design proble...
smart terminal4 is else) intelligent sometimes results in finicky, rigid `special features' that become just so much dead weight if you try to use the device in any way the designer didn't anticipate. Flexibility and programmability, on the...
smash case is vi. To lose or obliterate the uppercase/lowercase distinction in text input. "MS-DOS will automatically smash case in the names of all the files you create." Compare {fold case}.
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