IBM System/360 Model 40: Difference between revisions

Revision as of 12:49, 27 June 2017

Revision as of 00:34, 28 June 2017

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==Models==

Five models<ref group='NB'>Lower case "M"</ref> of the 360/40 were offered.<ref name="mod40-func-char">{{cite book|url=http://www.bitsavers.org/pdf/ibm/360/funcChar/A22-6881-2_360-40_funcChar.pdf|title=IBM System/360 Model 40 Functional Characteristics|id=A22-6881-2|date=August 1971}}</ref> The D40, E40, F40, G40 and H40 were configured with 16K, 32K, 64K, 128K and 256K of [[Magnetic-core memory|core memory]] and correspondingly 16, 32, 64, 128 and 128 <ref>not a typo: the physical limit seemed to be 224; see p. 17 of the Model 30 Functional Characteristics</ref> multiplexer subchannels.<ref name="mod40-func-char"/>

The H40<ref>as per those [[IBM 1620]] systems with larger amounts of memory; Basic Programming Concepts and The IBM 1620 Computer, by Daniel N. Leeson, Donald L. Dimitry, (C) 1962 by Holt, Rinehart and Winston</ref> occupied "more floor space than the other models."<ref name="mod40-func-char"/>{{rp|p.5}}

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The IBM System/360 Model 40 was developed<ref>http://www.cs.man.ac.uk/CCS/res/res23.htm states: "The System/360 architecture was developed in Poughkeepsie, 80 miles north of New York. Contributions came from people all over IBM, including our Hursley development group." and notes specific involvement in developing the 360/40.</ref> and manufactured at IBM's facilities in: Poughkeepsie, U.S., [[Mainz]], Germany; and [[Fujisawa, Kanagawa|Fujisawa]], Japan.

==Notes==

{{Reflist|group='NB'}}

==References==