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Guy Harris (talk | contribs) →Virtual memory: Remove duplicate sentence. |
Guy Harris (talk | contribs) →Operating systems: We already distinguish between the 155 and 155-II; the 155 only supported virtual-memory OSes if you upgraded it to a 155-II. Remove some extra stuff about MVS. |
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==Operating systems==
The 370/155 supported both [[DOS/360 and successors|DOS/360]] and [[OS/360 and successors|OS/360]].<ref name=IBMarc.155 /> Being members of the System/370 family, the Model 155 and Model 165 were compatible with each other. Lacking virtual memory support, neither machine, as announced, could run a virtual memory operating system.
A 370/155 upgraded to a 370/155-II, with support for virtual memory added, supported [[DOS/VS]] (DOS/360 with virtual storage), [[OS/VS1]] ([[OS/360 and successors#OS/MFT|OS/360 MFT]] with virtual storage), OS/VS2 Release 1 ([[OS/360 and successors#OS/MVT|OS/360 MVT]] with virtual storage), termed [[OS/VS2 (SVS)|SVS]] (Single Virtual Storage), and Release 2, termed [[MVS]] (Multiple Virtual Storage), and [[VM (operating system)|VM/370]].
==See also==
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