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Mobile Operating System (MOS; ) is an
operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ef ...
, a
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
clone Clone or Clones or Cloning or Cloned or The Clone may refer to: Places * Clones, County Fermanagh * Clones, County Monaghan, a town in Ireland Biology * Clone (B-cell), a lymphocyte clone, the massive presence of which may indicate a pathologi ...
of
Unix Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, a ...
from the 1980s.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."


Overview

This operating system is commonly found on
SM EVM SM EVM (СМ ЭВМ, abbreviation of Система Малых ЭВМ—literally System of Mini Computers) are several types of Soviet and Comecon minicomputers produced from 1975 through the 1980s. Most types of SM EVM are clones of DEC PDP-11 a ...
minicomputer A minicomputer, or colloquially mini, is a class of smaller general purpose computers that developed in the mid-1960s and sold at a much lower price than mainframe and mid-size computers from IBM and its direct competitors. In a 1970 survey, ...
s; it was also ported to
ES EVM The ES EVM (russian: Единая система электронных вычислительных машин (ЕС ЭВМ), translit=Yedinaya sistema electronnykh vytchislitel'nykh mashin (ES EVM), "Unified System of Electronic Computers"), o ...
and
Elbrus Mount Elbrus ( rus, links=no, Эльбрус, r=Elbrus, p=ɪlʲˈbrus; kbd, Ӏуащхьэмахуэ, 'uaşhəmaxuə; krc, Минги тау, Mingi Taw) is the highest and most prominent peak in Russia and Europe. It is situated in the we ...
. MOS is also used by high-end PDP-11 clones. Modifications of MOS include MNOS,
DEMOS Demos may refer to: Computing * DEMOS, a Soviet Unix-like operating system * DEMOS (ISP), the first internet service provider in the USSR * Demos Commander, an Orthodox File Manager for Unix-like systems * plural for Demo (computer programming ...
, , etc.


See also

*
List of Soviet computer systems This is the list of Soviet computer systems. The Russian abbreviation EVM (ЭВМ), present in some of the names below, means “electronic computing machine” (russian: электронная вычислительная машина). List of ...


References

Unix variants Computing in the Soviet Union {{Operating-system-stub