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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bell 101 ： ウィキペディア英語版 Bell 101 The Bell 101 dataset or Bell 101 modem was the first commercial modem for computers, released by AT&T Corporation in 1958 for use by SAGE and in 1959 made commercial shortly after AT&T's Bell Labs announced their 110 baud modulation frequencies. The Bell 101 modem allowed digital data to be transmitted over regular unconditioned telephone lines at a speed of 110 bits per second. Bell 101 modems are no longer in use, and were quickly replaced by its successor the Bell 103 modem. SAGE modems were described by AT&T's Bell Labs as conforming to the Bell 101 dataset standard. The Bell 101 modems were the first commercial equipment to use ASCII, which was called "four row", as opposed to the Baudot "three row" 6-bit/character code which was predominant from 1908–1962, prior to the rise of EBCDIC. ==See also== *List of device bandwidths 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「Bell 101」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.