:vulture capitalist: n. Pejorative hackerism for `venture capitalist', deriving from the common practice of pushing contracts that deprive inventors of control over their own innovations and most of the money they ought to have made from them.
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:wabbit: /wab'it/ [almost certainly from Elmer Fudd's immortal line "You wascawwy wabbit!">[ n. 1. A legendary early hack reported on a System/360 at RPI and elsewhere around 1978; this may have descended (if only by inspiration) from hack called RABBITS reported from 1969 on a Burroughs 55000 at the University of Washington Computer Center. The program would make two copies of itself every time it was run, eventually crashing the system. 2. By extension, any hack that includes infinite self-replication but is not a {virus} or {worm}. See {fork bomb}, see also {cookie monster}.
:WAITS:: /wayts/ n. The mutant cousin of {{TOPS-10}} used on a handful of systems at {{SAIL}} up to 1990. There was never an `official' expansion of WAITS (the name itself having been arrived at by a rather sideways process), but it was frequently glossed as `West-coast Alternative to ITS'. Though WAITS was less visible than ITS, there was frequent exchange of people and ideas between the two communities, and innovations pioneered at WAITS exerted enormous indirect influence. The early screen modes of {EMACS}, for example, were directly inspired by WAITS's `E' editor —- one of a family of editors that were the first to do `real-time editing', in which the editing commands were invisible and where one typed text at the point of insertion/overwriting. The modern style of multi-region windowing is said to have originated there, and WAITS alumni at XEROX PARC and elsewhere played major roles in the developments that led to the XEROX Star, the Macintosh, and the Sun workstations. {Bucky bits} were also invented there —- thus, the ALT key on every IBM PC is a WAITS legacy. One notable WAITS feature seldom duplicated elsewhere was a news-wire interface that allowed WAITS hackers to read, store, and filter AP and UPI dispatches from their terminals; the system also featured a still-unusual level of support for what is now called `multimedia' computing, allowing analog audio and video signals to be switched to programming terminals.
:waldo: /wol'doh/ [From Robert A. Heinlein's story "Waldo">[ 1. A mechanical agent, such as a gripper arm, controlled by a human limb. When these were developed for the nuclear industry in the mid-1940s they were named after the invention described by Heinlein in the story, which he wrote in 1942. Now known by the more generic term `telefactoring', this technology is of intense interest to NASA for tasks like space station maintenance. 2. At Harvard (particularly by Tom Cheatham and students), this is used instead of {foobar} as a metasyntactic variable and general nonsense word. See {foo}, {bar}, {foobar}, {quux}.
:walk: n.,vt. Traversal of a data structure, especially an array or linked-list data structure in {core}. See also {codewalker}, {silly walk}, {clobber}.
:walk off the end of: vt. To run past the end of an array, list, or medium after stepping through it —- a good way to land in trouble. Often the result of an {off-by-one error}. Compare {clobber}, {roach}, {smash the stack}.
:walking drives: n. An occasional failure mode of magnetic-disk drives back in the days when they were huge, clunky {washing machine}s. Those old {dinosaur} parts carried terrific angular momentum; the combination of a misaligned spindle or worn bearings and stick-slip interactions with the floor could cause them to `walk' across a room, lurching alternate corners forward a couple of millimeters at a time. There is a legend about a drive that walked over to the only door to the computer room and jammed it shut; the staff had to cut a hole in the wall in order to get at it! Walking could also be induced by certain patterns of drive access (a fast seek across the whole width of the disk, followed by a slow seek in the other direction). Some bands of old-time hackers figured out how to induce disk-accessing patterns that would do this to particular drive models and held disk-drive races.
:wall: [WPI] interj. 1. An indication of confusion, usually spoken with a quizzical tone: "Wall??" 2. A request for further explication. Compare {octal forty}. 3. [UNIX] v. To send a message to everyone currently logged in, esp. with the wall(8) utility.
It is said that sense 1 came from the idiom `like talking to a blank wall'. It was originally used in situations where, after you had carefully answered a question, the questioner stared at you blankly, clearly having understood nothing that was explained. You would then throw out a "Hello, wall?" to elicit some sort of response from the questioner. Later, confused questioners began voicing "Wall?" themselves.