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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  • BountifulEggnog [she/her]
    ·
    12 hours ago

    Got plenty of sleep last night, still feel miserable today. At least none of my dreams got remembered, so if there was something upsetting in there shrug-outta-hecks

    sh

    20 days clean. Still struggling a lot with urges. It feels very close in a way that's hard to describe.

    I feel so hopeless, about everything. This gives me one thought. Not worth talking about.

    I don't know why my brain does this. Mental illness ig.

    • BountifulEggnog [she/her]
      ·
      11 hours ago
      spoiler

      maybe its not mental illness, and wanting to sh/kms is just a normal, rational reaction to what is happening. Neither option is super comforting.

      • TerminalEncounter [she/her]
        ·
        8 hours ago

        meow-hug

        spoiler

        Self harm and killing yourself are definitely not the outcomes we want. Rational... well what is a rational response, let's say it's an understandable response. I'm very proud of you for getting to 20 days!

        • BountifulEggnog [she/her]
          ·
          8 hours ago

          meow-hug

          spoiler

          Its not what I want either. Sorry. Just a lot of thoughts. Its all very hard for me.

          Thank you, its been difficult. I really appreciate your support.