翻訳と辞書 Words near each other ・ Flying Wedge Pizza ・ Flying while Muslim ・ Flying Wild ・ Flying Wild Alaska ・ Flying Wild Hog ・ Flying wing ・ Flying wires ・ Flying Witch ・ Flying with Music ・ Flying Without Wings ・ Flying Yankee ・ Flying, The Early Years ・ Flying-M Ranch ・ Flying-Model-Simulator ・ Flying-spot scanner ・ Flying-spot store ・ Flying/Sporting pigeons ・ Flyingbolt ・ Flyingbolt Novice Chase ・ Flyinge ・ Flyingshot Lake, Alberta ・ Flyitalia MD3 Rider ・ Flyjet ・ Flykeen Airways ・ Flykingi ・ Flyktningerennet ・ Flykälen ・ Flylab ・ Flylab Tucano ・ FlyLady 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 Flying-spot store ： ウィキペディア英語版 Flying-spot store The flying-spot store was an optical digital memory used in early stored program control components of electronic switching systems.〔D.H. Carbaugh and N.L. Marselos, ''Switching System Software'', in ''Fundamentals of Digital Switching Systems'', J. C. McDonald (ed.), Plenum Press (1983), ISBN 0-306-41224-1〕 The flying-spot store used a photographic plate as the store of binary data. Each ''spot'' on the plate was an opaque (logical 0) or transparent (logical 1) area that stored one bit. Spots were read and written with an optical mechanism with an access time of ca. one microsecond.〔''Electronic Central Office'', Long Lines 40(5) p16 (1960)〕 The optical system consisted of a cathode ray tube that functioned as a flying-spot scanner, the source of light beams produced on its face and focused onto the photographic plates with a system of lenses. A photomultiplier detected the light beam. The light beam could be split into several components to read multiple plates simultaneously, permitting the formation of a group of bits for each location.〔A. E. Joel, ''An Experimental Electronic Switching System'', Bell Laboratory Record, October 1958 p.359〕 A flying-spot store was the main permanent program and data memory for the first electronic central office installed on a trial basis in Morris, Illinois in 1960. The memory was organized as a set of nine photographic plates and permitted reading two spots per memory address, yielding a ''word'' size of 18 bits. For temporary data, the system used a barrier-grid electrostatic storage tube. ==See also== *1ESS switch 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Flying-spot store」の詳細全文を読む 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.