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V7 /V´sev´en/, n. See {Version 7}.
vadding /vad´ing/, n. [from VAD, a permutation of ADV (i.e., {ADVENT}), used to avoid a particular {admin}'s continual search-and-destroy sweeps for the game] A leisure-time activity of certain hackers involving the covert exploration of the 'secret' parts of large buildings -- basements, roofs, freight elevators, maintenance crawlways, steam tunnels, and the like. A few go so far as to learn locksmithing in order to synthesize vadding keys. The verb is to vad (compare {phreaking}; see also {hack}, sense 9). This term dates from the late 1970s, before which such activity was simply called 'hacking'; the older usage is still prevalent at MIT. The most extreme and dangerous form of vadding is elevator rodeo, a.k.a. elevator surfing, a sport played by wrasslin' down a thousand-pound elevator car with a 3-foot piece of string, and then exploiting this mastery in various stimulating ways (such as elevator hopping, shaft exploration, rat-racing, and the ever-popular drop experiments). Kids, don't try this at home!
vanilla adj. [from the default flavor of ice cream in the U.S.] Ordinary {flavor}, standard. When used of food, very often does not mean that the food is flavored with vanilla extract! For example, vanilla wonton soup means ordinary wonton soup, as opposed to hot-and-sour wonton soup. Applied to hardware and software, as in "Vanilla Version 7 Unix can't run on a vanilla 11/34." Also used to orthogonalize chip nomenclature; for instance, a 74V00 means what TI calls a 7400, as distinct from a 74LS00, etc. This word differs from {canonical} in that the latter means 'default', whereas vanilla simply means 'ordinary'. For example, when hackers go on a {great-wall}, hot-and-sour soup is the {canonical} soup to get (because that is what most of them usually order) even though it isn't the vanilla (wonton) soup.
vanity domain n. [common; from 'vanity plate' as in car license plate] An Internet domain, particularly in the .com or .org top-level domains, apparently created for no reason other than boosting the creator's ego.
vannevar /van'@·var/, n. A bogus technological prediction or a foredoomed engineering concept, esp. one that fails by implicitly assuming that technologies develop linearly, incrementally, and in isolation from one another when in fact the learning curve tends to be highly nonlinear, revolutions are common, and competition is the rule. The prototype was Vannevar Bush's prediction of 'electronic brains' the size of the Empire State Building with a Niagara-Falls-equivalent cooling system for their tubes and relays, a prediction made at a time when the semiconductor effect had already been demonstrated. Other famous vannevars have included magnetic-bubble memory, LISP machines, {videotex}, and a paper from the late 1970s that computed a purported ultimate limit on areal density for ICs that was in fact less than the routine densities of 5 years later.
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