# OS/VS

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/OS/VS
> Markdown URL: https://mediated.wiki/source/OS/VS.md
> Source: https://en.wikipedia.org/wiki/OS%2FVS
> Source revision: 1339643722
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**OS/VS** may refer to one of a number of IBM operating systems for [System/370](/source/IBM_System/370) and successors characterized by the use of [virtual storage](/source/Virtual_memory) (VS):

- IBM [OS/VS1](/source/OS/VS1), successor to [MFT II](/source/OS/360_and_successors#MFT), 1972-1984
- IBM [OS/VS2](/source/OS/VS2), successor to [MVT](/source/OS/360_and_successors#MVT), including: - OS/VS2 version 1, also known as [SVS](/source/OS/VS2_(SVS)) (Single Virtual Storage), 1972-1974 - OS/VS2 version 2, also known as [MVS](/source/OS/VS2_(MVS)) (Multiple Virtual Storage), 1974-1981

OS/VS1 had no follow-on systems. Successor operating systems of OS/VS2 dropped the "OS/VS" tag and became simply "[MVS/SE](/source/MVS/SE)", "[MVS/SP](/source/MVS/SP)", "[MVS/XA](/source/MVS/XA)", etc.

## See also

- [MVS](/source/MVS)
- [OS/360 and successors](/source/OS/360_and_successors)

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Adapted from the Wikipedia article [OS/VS](https://en.wikipedia.org/wiki/OS%2FVS) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/OS%2FVS?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.