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chicken: n. See {laser chicken}.

      :Chernobyl packet: /cher-noh'b*l pak'*t/ n. A network packet that

       induces {network meltdown} (the result of a {broadcast

       storm}), in memory of the April 1986 nuclear accident at Chernobyl

       in Ukraine. The typical scenario involves an IP Ethernet datagram

       that passes through a gateway with both source and destination

       Ether and IP address set as the respective broadcast addresses for

       the subnetworks being gated between. Compare {Christmas tree

       packet}.

      :chicken head: [Commodore] n. The Commodore Business Machines logo,

       which strongly resembles a poultry part. Rendered in ASCII as

       `C='. With the arguable exception of the Amiga (see {amoeba}),

       Commodore's machines are notoriously crocky little {bitty box}es

       (see also {PETSCII}). Thus, this usage may owe something to

       Philip K. Dick's novel `Do Androids Dream of Electric Sheep?'

       (the basis for the movie `Blade Runner'), in which a

       `chickenhead' is a mutant with below-average intelligence.

      :chiclet keyboard: n. A keyboard with small rectangular or lozenge-shaped rubber or plastic keys that look like pieces of chewing gum. (Chiclets is the brand name of a variety of chewing gum that does in fact resemble the keys of chiclet keyboards.) Used esp. to describe the original IBM PCjr keyboard. Vendors unanimously liked these because they were cheap, and a lot of early portable and laptop products got launched using them. Customers rejected the idea with almost equal unanimity, and chiclets are not often seen on anything larger than a digital watch any more.

      :chine nual: /sheen'yu-*l/ [MIT] n.,obs. The Lisp Machine Manual, so called because the title was wrapped around the cover so only those letters showed on the front.

      :Chinese Army technique: n. Syn. {Mongolian Hordes technique}.

      :choke: v. 1. To reject input, often ungracefully. "NULs make System V's `lpr(1)' choke." "I tried building an {EMACS} binary to use {X}, but `cpp(1)' choked on all those `#define's." See {barf}, {gag}, {vi}. 2. [MIT] More generally, to fail at any endeavor, but with some flair or bravado; the popular definition is "to snatch defeat from the jaws of victory."

      :chomp: vi. To {lose}; specifically, to chew on something of which more was bitten off than one can. Probably related to gnashing of teeth. See {bagbiter}. A hand gesture commonly accompanies this. To perform it, hold the four fingers together and place the thumb against their tips. Now open and close your hand rapidly to suggest a biting action (much like what Pac-Man does in the classic video game, though this pantomime seems to predate that). The gesture alone means `chomp chomp' (see "{Verb Doubling}" in the "{Jargon Construction}" section of the Prependices). The hand may be pointed at the object of complaint, and for real emphasis you can use both hands at once. Doing this to a person is equivalent to saying "You chomper!" If you point the gesture at yourself, it is a humble but humorous admission of some failure. You might do this if someone told you that a program you had written had failed in some surprising way and you felt dumb for not having anticipated it.

      :chomper: n. Someone or something that is chomping; a loser. See {loser}, {bagbiter}, {chomp}.

      :CHOP: /chop/ [IRC] n. See {channel op}.

      :Christmas tree: n. A kind of RS-232 line tester or breakout box

       featuring rows of blinking red and green LEDs suggestive of

       Christmas lights.

      :Christmas tree packet: n. A packet with every single option set for whatever protocol is in use. See {kamikaze packet}, {Chernobyl packet}. (The term doubtless derives from a fanciful image of each little option bit being represented by a different-colored light bulb, all turned on.)

      :chrome: [from automotive slang via wargaming] n. Showy features added to attract users but contributing little or nothing to the power of a system. "The 3D icons in Motif are just chrome, but they certainly are *pretty* chrome!" Distinguished from {bells and whistles} by the fact that the latter are usually added to gratify developers' own desires for featurefulness. Often used as a term of contempt.

      :chug: vi. To run slowly; to {grind} or {grovel}. "The disk is chugging like crazy."

      :Church of the SubGenius: n. A mutant offshoot of

       {Discordianism} launched in 1981 as a spoof of fundamentalist

       Christianity by the `Reverend' Ivan Stang, a brilliant satirist

       with a gift for promotion. Popular among hackers as a rich source

       of bizarre imagery and references such as "Bob" the divine

       drilling-equipment salesman, the Benevolent Space Xists, and the

       Stark Fist of Removal. Much SubGenius theory is concerned with the

       acquisition of the mystical substance or quality of `slack'.

      :Cinderella Book: [CMU] n. `Introduction to Automata Theory,

       Languages, and Computation', by John Hopcroft and Jeffrey Ullman,

       (Addison-Wesley, 1979). So called because the cover depicts a girl

       (putatively Cinderella) sitting in front of a Rube Goldberg device

       and holding a rope coming out of it. The back cover depicts the

       girl with the device in shambles after she has pulled on the rope.

       See also {{book titles}}.

      :CI$: // n. Hackerism for `CIS', CompuServe Information Service.

       The dollar sign refers to CompuServe's rather steep line charges.

       Often used in {sig block}s just before a CompuServe address.

       Syn. {Compu$erve}.

      :Classic C: /klas'ik C/ [a play on `Coke Classic'] n. The C programming language as defined in the first edition of {K&R}, with some small additions. It is also known as `K&R C'. The name came into use while C was being standardized by the ANSI X3J11 committee. Also `C Classic'. This is sometimes applied elsewhere: thus, `X Classic', where X = Star Trek (referring to the original TV series) or X = PC (referring to IBM's ISA-bus machines as opposed to the PS/2 series). This construction is especially used of product series in which the newer versions are considered serious losers relative to the older ones.

      :clean: 1. adj. Used of hardware or software designs, implies `elegance in the small', that is, a design or implementation that may not hold any surprises but does things in a way that is reasonably intuitive and relatively easy to comprehend from the outside. The antonym is `grungy' or {crufty}. 2. v. To remove unneeded or undesired files in a effort to reduce clutter: "I'm cleaning up my account." "I cleaned up the garbage and now have 100 Meg free on that partition."

      :CLM: /C-L-M/ [Sun: `Career Limiting Move'] 1. n. An action endangering one's future prospects of getting plum projects and raises, and possibly one's job: "His Halloween costume was a parody of his manager. He won the prize for `best CLM'." 2. adj. Denotes extreme severity of a bug, discovered by a customer and obviously missed earlier because of poor testing: "That's a CLM bug!"

      :clobber: vt. To overwrite, usually unintentionally: "I walked off the end of the array and clobbered the stack." Compare {mung}, {scribble}, {trash}, and {smash the stack}.

      :clocks: n. Processor logic cycles, so called because each generally corresponds to one clock pulse in the processor's timing. The relative execution times of instructions on a machine are usually discussed in clocks rather than absolute fractions of a second; one good reason for this is that clock speeds for various models of the machine may increase as technology improves, and it is usually the relative times one is interested in when discussing the instruction set. Compare {cycle}.

      :clone: n. 1. An exact duplicate: "Our product is a clone of their product." Implies a legal reimplementation from documentation or

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