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M-20, M-220 and M222 were a range of general purpose computers designed and manufactured in the USSR. These computers were developed by the Scientific Research Institute of Electronic Machines (NIIEM) and built at Moscow Plant of Calculating and Analyzing Machines (SAM) and the Kazan Plant of Computing Machines (under the Ministry of Radio Industry of the USSR). ==Operating systems== Provided batch-processing and simultaneous execution, subsequently enhance to provide a multitasking mode. * OS4-220 - for the М-220 * DM-222 - for the М-222 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「M series (computer)」の詳細全文を読む スポンサード リンク
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