IBM System/360 Model 40: Difference between revisions

Revision as of 13:06, 11 November 2018

Revision as of 13:09, 11 November 2018

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Five models 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 group='NB'>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 group='NB'>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}}

==Configuration==