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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 PDP-7 ： FOLDOC PDP-7 A minicomputer sold by DEC in 1964. It had a memory cycle time of 1.75 microseconds and add time of 4 microseconds. I/O included a keyboard, printer, paper-tape and dual transport DECtape drives (type 555). DEC provided an "advanced" Fortran II compiler, a Symbolic Assembler, Editor, DDT Debugging System, Maintenance routines and a library of arithmetic, utility and programming aids developed on the program-compatible PDP-4. [DEC sales brochure]. The PDP-7 was considered reliable enough (when properly programmed) to be used for control of nuclear reactors and such. Around 1970 Ken Thompson built the operating system that became Unix on a scavenged PDP-7 so he could play a descendant of the SPACEWAR game. (1995-03-10) 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.