翻訳と辞書 Words near each other ・ validation ・ value ・ value added network ・ value added reseller ・ value added retailer ・ valve ・ vampire tap ・ van ・ vanilla ・ vanity domain ・ vannevar ・ vannevar bush ・ vaporware ・ vapourware ・ var ・ variable ・ variational graphics extended ・ vax ・ vax document ・ vax mips Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク vannevar ： FOLDOC vannevar /van'*-var/ A bogus technological prediction or a foredoomed engineering concept, especially 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 integrated circuits that was in fact less than the routine densities of 5 years later. [Jargon File] (2000-02-29) スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.