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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  • TerminalEncounter [she/her]@hexbear.net
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    4 hours ago
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    Wish I could just hug you irl.

    Don’t stop posting if it’s helping, It’s hard seeing you go through all this. Sometimes I wish I could take you away from your shitty parents and just take you on a girls night out

    • BountifulEggnog [she/her]@hexbear.net
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      2 hours ago
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      Me too. I wish I could cry into you.

      It does help. I feel very alone and being able to talk is nice.

      just talking, don't feel obligated or anything

      Not that there’s a lot to say. The dysphoria is bad, I’m scared. I’ve been scared of the future forever and it seems just as bad as I’ve feared. Everything is so wrong with me. I can’t stress enough how the dysphoria hurts.

      self harm, worse then usual, sorry

      I keep having urges. Thinking about how it felt last time. Thinking about how it would feel again. Looking at the blood and feeling the rush. I remember it being better then anything. I don’t know if that’s true or not but its how it feels. I know I shouldn’t do it, I know it doesn’t “solve” anything… nothing solves anything. There are no solutions. I feel so hopeless, on a personal level and about everything happening on a macro level.

      I just can’t stop thinking about it.

      Sorry I keep doing this to you. I know I’m a lot.