MOS (operating system)

MOS signifies 'Mobile Operating System' (). It was a Soviet clone of Unix in the 1980s.
Overview.
This operating system was commonly found on SM EVM minicomputers; it was also ported to ES EVM and Elbrus. MOS was also used in high-end PDP-11 clones.
There have been several modifications of MOS named MNOS, DEMOS, etc.