The IBM System/360 Model 22 was an IBM mainframe from the System/360 line.
History The Model 22 was a cut-down (economy) versionIBM description: "... small-system economy. It provided an economical way for users to..." of the Model 30 computer, aimed at bolstering the low end of the range.
The 360/22 was announced less than a year after the June 22, 1970 withdrawal of the 360/30, and it lasted six and a half years, from April 7, 1971, to October 7, 1977.
Comparisons Model AnnouncedWithdrawn Scientificperformance(kIPS)Performance calculated (not measured) based on a mix of instructions typical of scientific applications ("Gibson Mix") with the results in kilo Instructions Per Second (kIPS) per except for M95 and M195. The latter based upon estimates of performance relative to M65 from Pugh. Commercialperformance(kIPS)using commercial instruction mix ("ADP Mix") CPUBandwidth(MB/sec)MemoryK=1,024 (model)Lower case "M" 2219711977 10 281.3 24, 32 2519681977 9.7 251.1 16, 24, 32, 48 3019641970 10.2 291.3 8 (C30), 16 (D30), 24 (DC30),Note: The DC30 was added in the second/FASTER iteration of the 360/30 32 (E30), 64 (F30) 4019641970 40 753.2 16 (D40), 32 (E40), 64 (F40), 128 (G40), 256 (H40)
Models Only two models were offered: 24K or 32K of memory.by comparison, the initial offering of the 360/30 included FOUR models: 8K, 16K, 32K, 64K
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