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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  • lilypad [she/her, null/void]
    ·
    4 days ago
    probably not a sex thing

    Ok has anyone used one of those human sized dog beds? Me and my friends are debating getting one, and were pretty tall (over 190cm). Are they actually comfy? And like would you recommend a specific one? Bonus points if it comes in pink doggirl-smug

    • rtstragedy [fae/faer, she/her]
      ·
      4 days ago

      i used to have one, they're comfy if you're sitting on the floor like cross-legged ig, good for like movie nights or whatever if you have too many people to fit on a couch. havent tried sleeping on one though

      • lilypad [she/her, null/void]
        ·
        4 days ago

        Thanks for your insight! Idk if we would be sleeping on it, but we would just curl up in it for movies and hanging out (we all live together).

        • rtstragedy [fae/faer, she/her]
          ·
          edit-2
          4 days ago

          I know Costco used to have pretty big ones (although I don't go there anymore, too chaotic and busy...)