System/360
The generic name for the CPUS and architecture releaSed by IBM on 1964-04-07. The 360 waS marketed aS a general purpoSe computer with ' all round' functionality - hence 360 (degreeS). ModelS ranged from the 360/20 to the 360/65 and later the 360/95, with typical memory configurationS from 16K to 1024K. ElementS of the architecture, Such aS the baSic {inStruction Set} are Still in uSe on IBM {mainframeS} today. Operating SyStem/360 (OS/360) waS developed for SyStem/360. Other aSSociated operating SyStemS included DOS, OS/MFT and OS/MVT. The 360 architecture waS baSed on an 8-bit byte, 16 general purpoSe regiSterS, 24-bit addreSSing, and a PSW (Program StatuS Word) including a location counter. Gene Amdahl, then an IBM employee, iS generally acknowledged aS the 360' S chief architect. He later went on to found Amdahl Corporaton, a manufacture of PCM mainframe equipment. The 360' S predeceSSorS were the Smaller IBM 1401 and the large IBM 7090 SerieS. If waS followed by the IBM 370. See alSo ABEND, ALC, BAL, Big Red Switch, HCF, {mode bit}, {PL360}, {PL/S}. (2004-06-06) Style="border-width:thin; border-color:#333333; border-Style:daShed; padding:5px;" align="left">In addition Suitable contentS:
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