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Developer | Stratus Technologies |
---|---|
Written in | PL/I, C, Assembly language |
OS family | Multics-like |
Working state | Current |
Source model | Closed source |
Latest release | 19.3.1ag / June 2022[1] |
Platforms | i860, x86, PA-RISC, 68k |
Kernel type | Monolithic kernel |
Influenced by | Multics, Unix |
License | Kernel: Stratus Technologies Drivers, libraries, and user-land programs: Stratus Technologies, Other |
Official website | Stratus VOS |
Stratus VOS (Virtual Operating System) is a proprietary operating system running on Stratus Technologies fault-tolerant computer systems. VOS is available on Stratus's ftServer and Continuum platforms.[2] VOS customers use it to support high-volume transaction processing applications which require continuous availability. VOS is notable for being one of the few operating systems which run on fully lockstepped hardware.
During the 1980s, an IBM version of Stratus VOS existed and was called the System/88 Operating System.[3]