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Developer | IBM |
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Written in | Assembler (XF), PL/S (nee BSL) |
Working state | Historic |
Latest release | OS/VS1 Basic Programming Extensions (BPE) Release 4 / March 1984 |
Marketing target | IBM mainframes |
Platforms | System/370 |
License | Proprietary |
Preceded by | OS/360 |
History of IBM mainframe operating systems |
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Operating System/Virtual Storage 1, or OS/VS1, is a discontinued IBM mainframe computer operating system designed to be run on IBM System/370 hardware. It was the successor to the Multiprogramming with a Fixed number of Tasks (MFT) option of System/360's operating system OS/360. OS/VS1, in comparison to its predecessor, supported virtual memory (then called virtual storage).[1] OS/VS1 was generally available during the 1970s and 1980s, and it is no longer supported by IBM.
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