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| History of IBM mainframe operating systems |
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Disk Operating System/360, also DOS/360, or simply DOS, is the discontinued first member of a sequence of operating systems for IBM System/360, System/370 and later mainframes. It was announced by IBM on the last day of 1964, and it was first delivered in June 1966.[1] In its time, DOS/360 was the most widely used operating system in the world.[2]
- ^ Pugh, E.W.; Johnson, L.R.; Palmer, John H. (1991). IBM's 360 and early 370 systems. Cambridge, MA and London: MIT Press. ISBN 0-262-16123-0.
– extensive (819 pp.) treatment of IBM's offerings during this period - ^ Pugh, op. cit., p. 331 – most widely used OS