DEMOS (Dialogovaya Edinaya Mobilnaya Operatsionnaya Sistema: Russian: Диалоговая Единая Мобильная Операционная Система, ДЕМОС, lit. ‘Interactive Unified Portable Operating System’) is a Unix-like operating system developed in the Soviet Union. It is derived from Berkeley Software Distribution (BSD) Unix.

It’s development was initiated in the Kurchatov Institute of Atomic Energy in Moscow in 1982, and development continued in cooperation from other institutes, and commercialized by DEMOS Co-operative which employed most key contributors to DEMOS and to its earlier alternative, MNOS (a clone of Version 6 Unix). MNOS and DEMOS version 1.x were gradually merged from 1986 until 1990, leaving the joint OS, DEMOS version 2.x, with support for different Cyrillic script character encoding (charsets) (KOI-8 and U-code, used in DEMOS 1 and MNOS, respectively).

Initially it was developed for SM-4 (a PDP-11/40 clone) and SM-1600. Later it was ported to Elektronika-1082, BESM, ES EVM, clones of VAX-11 (SM-1700), and several other platforms, including PC/XT, Elektronika-85 (a clone of DEC Professional), and several Motorola 68020-based microcomputers.

The development of DEMOS effectively ceased in 1991, when the second project of the DEMOS team, RELCOM, took priority.

An archive of the DEMOS source code can found here: https://github.com/bpr97050/DEMOS There’s some interesting comments and mailing list archives in that repository as well. :)


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  • imogen_underscore [it/its, she/her]@hexbear.net
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    5 hours ago

    i wouldn’t agree that it’s mostly about that but it makes sense that there would be a good element of it in there yeah. i think it is still good advice for a lot of folks though. it’s not posturing to acknowledge that armed struggle is a necessary step on the path from what we have now to true queer liberation. i think it’s more about that than individual queers shooting violent homophobes in walmart or whatever. I’m not american never lived there but I can see it’s an injustice that I’m not allowed own a gun while the armed forces of the bourgeoisie carry them in my country. if I could get one I would. obviously it’s not for everyone and should never be portrayed as some sort of hard requirement to be a queer leftist.