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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  • Wmill [they/them]
    ·
    4 days ago

    Sibling call out my dean-frown when they were mentioning how fun shadow generations looks, as a freak who's 100% shadow the hedgehog 2005 the fact there isn't a level from shadow 05 in shadow gens disappoints me. Take my opinon how you'd like since I've been spending the last 7 hours playing secret rings no-copyright and having a lot of fun.

    • Wmill [they/them]
      ·
      4 days ago

      Secret rings with no motion controls is pretty legit, up until the true final boss at least. I might just be getting burn out but spending a day talking to people as I get to play one of my fav series made this week for me. Honestly if I ever get a good computer I'd probably try streaming, even if I only get one person getting to talk about no-copyright makes my creature heart happy and my body literally shake with joy. I hope everyone knows about the joy shakes and it's not just me thing

      • sneak100
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        edit-2
        3 days ago

        deleted by creator

        • Wmill [they/them]
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          3 days ago

          Hell yeah unbridled joy is soo much fun, it can be overwhelming but with how rare it is I try to enjoy it and glad you like it too

          • sneak100
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            edit-2
            3 days ago

            deleted by creator

            • Wmill [they/them]
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              3 days ago

              meow-hug I know the feeling. never realized until know that it was internalised ableism. I can get pretty intense myself and embarrassed afterward guess it a reason I grew up pretty stoic around people I didn't really trust.

      • Wmill [they/them]
        ·
        4 days ago

        Tried to find something on joy shakes and zilch, asked bard if this is a normal human emotion and it reassured me that it is data-revolutionary feel at ease now