MOS (operating system)

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Mobile Operating System (MOS)
OS familyUnix-like
Working stateDiscontinued
Source modelClosed source
Available inRussian
PlatformsSM EVM, ES EVM, Elbrus, PDP-11 clones
Kernel typeMonolithic

Mobile Operating System (MOS; Russian: Моби́льная Операцио́нная Систе́ма (МОС)) is an operating system, a Soviet clone of Unix from the 1980s.


This operating system is commonly found on SM EVM minicomputers; it was also ported to ES EVM and Elbrus. MOS is also used by high-end PDP-11 clones.

Modifications of MOS include MNOS, DEMOS, INMOS, etc.

See also


  1. ^ Balodis, Rihards; et al. "History of Nordic Computing 3" IFIP Advances in Information and Communication Technology, 2011, Volume 350/2011, 453-461; "The common operating system was MOS, a clone of UNIX."
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