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Two meg single-platter removable disk packs used to be called pizzas, and the huge drive they were stuck into was referred to as a pizza oven. It's an index of progress that in the old days just the disk was pizza-sized, while now the entire computer is.
pizza, ANSI standard /an'see stan'dU0259.gifrd peet'zU0259.gif/ [CMU] Pepperoni and mushroom pizza. Coined allegedly because most pizzas ordered by CMU hackers during some period leading up to mid-1990 were of that flavor. See also rotary debugger; compare tea, ISO standard cup of.
plaid screen n. [XEROX PARC] A 'special effect' that occurs when certain kinds of memory smashes overwrite the control blocks or image memory of a bit-mapped display. The term "salt and pepper" may refer to a different pattern of similar origin. Though the term as coined at PARC refers to the result of an error, some of the X demos induce plaid-screen effects deliberately as a display hack.
plain-ASCII /playn-as'kee/ Syn. flat-ASCII.
plan file n. [Unix] On systems that support finger, the '.plan' file in a user's home directory is displayed when the user is fingered. This feature was originally intended to be used to keep potential fingerers apprised of one's location and near-future plans, but has been turned almost universally to humorous and self-expressive purposes (like a sig block). See also Hacking X for Y.
A recent innovation in plan files has been the introduction of "scrolling plan files" which are one-dimensional animations made using only the printable ASCII character set, carriage return and line feed, avoiding terminal specific escape sequences, since the finger command will (for security reasons; see letterbomb) not pass the escape character.
Scrolling .plan files have become art forms in miniature, and some sites have started competitions to find who can create the longest running, funniest, and most original animations. Various animation characters include:
Centipede
mmmmme
Lorry/Truck
oo-oP
Andalusian Video Snail
_@/

and a compiler (ASP) is available on Usenet for producing them. See also twirling baton.

 
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