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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  • Luna [she/her, love/loves]
    ·
    20 days ago

    Voice training and realizing that I have amazing control of the muscles I need already due to years of singing. The thing is... it's with singing. I can't for the life of me control them while speaking (yet). I actually got into it on the way to work this morning, and was able to speak with a pretty good fem voice, but on the way back I just couldn't get it for the whole commute.

    I will master this, I will. Am I, a self-described vocalist, really going to let speaking (vocals) get the best of me? NO catgirl-hiss

    • CrookedSerpent [she/her]
      ·
      edit-2
      20 days ago

      Haha I'm the total opposite. I made the mistake of going to karaoke with some friends (some of whom I wasn't out as trans with) and I had to chose between sounding like a dying vulture but continuing to pass, or singing okay but outing myself... I chose the dying vulture XD