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DOCS (software)
== The product ==
Computer operators communicated with IBM mainframe computers using an electro-mechanical typewriter-like console that came standard on most IBM 360 and 370 computer, except a few upper end models that offered video consoles and the Model 20 which came standard without a console.
The majority of smaller and less expensive IBM 360s and 370s came equipped with these ruggedized Selectric keyboard devices. The Selectric was a major step up from the teletypes (TTY) associated with Unix and smaller systems, but still clunky. The video consoles provided with certain models were not considered particularly user friendly, and they ignored two thirds of IBM's mainframe market, DOS and its VSE descendants.
DOCS replaced or supplanted the typewriter interface with a video screen. In practice, it worked a little like present-day instant messenger programs (ICQ, QQ, AIM, Adium, iChat, etc.), with a data entry line at the bottom and messages scrolling in real time up the screen. The commands were otherwise identical.
DOCS was available for DOS, DOS/VS, DOS/VSE, and came packaged with third party operating systems, such as EDOS from The Computer Software Company, later acquired by Nixdorf.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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