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Universal Time-Sharing System : ウィキペディア英語版 | Universal Time-Sharing System
The Universal Time-Sharing System (UTS) was an operating system for the XDS Sigma series of computers, succeeding Batch Processing Monitor (BPM)/Batch Time-Sharing Monitor (BTM). UTS was announced in 1966, but because of delays did not actually ship until 1971. It was designed to provide multi-programming services for online (interactive) user programs in addition to batch-mode production jobs, symbiont (spooled) I/O, and critical real-time processes. System Daemons, called "ghost jobs" were used to run monitor code in user space. The final release, D00, shipped in January, 1973. It was succeeded by the CP-V operating system, which combined UTS with the heavily batch-oriented Xerox Operating System (XOS). ==CP-V== The CP-V (pronounced sea-pea-five) operating system, the compatible successor to UTS, was released in August 1973.〔(【引用サイトリンク】title=Features Added to CP-V by Release )〕 CP-V supported the same CPUs as UTS plus the Xerox 560. CP-V offered "single-stream and multiprogrammed batch; timesharing; and the remote processing mode, including intelligent remote batch." Realtime processing was added in release B00 in April 1974, and transaction processing in release C00 in November 1974.〔(【引用サイトリンク】title=History, Size, and Scope of CP-V )〕〔(【引用サイトリンク】title=CP-V Design )〕 CP-V version C00 and F00, and Telefile's TCP-V version I00 still run on a Sigma emulator developed in 1997.
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「Universal Time-Sharing System」の詳細全文を読む
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