M-20, M-220 and M222 were a range of general-purpose computers designed and manufactured in the USSR. These computers were developed by the Scientific Research Institute of Electronic Machines (NIIEM) and built at Moscow Plant of Calculating and Analyzing Machines (SAM) and the Kazan Plant of Computing Machines (under the Ministry of Radio Industry of the USSR).
Operating systems
editThe operating system provided batch processing and simultaneous execution, subsequently enhanced to provide a multitasking mode.
- OS4-220 – for the М-220
- DM-222 – for the М-222
Available programming languages
editSee also
edit- The Association of M-20 Users – a M-20 software distributor
Further reading
edit- L.N. Korolyov. The computer structures and their software base. Moscow, Nauka, 1974.
- Electronic digital computation machines for general purposes. Vol. 4. NII EIR Publication, 1972.
External links
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