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]
    ·
    3 hours ago
    more depression posting

    My suffering has gotten worse with time. The further back I look, the happier I was. I have felt wrong forever.

    There is no reason to think this will get better. Every fucking time I explore "oh let's see and understand my problems and worries" it's actually just as awful as I feared. Learning and understanding are the worst mistakes I have ever made.

    Maybe my brain is just broken. I don't see normal people suffer like this. There is one way out.

    What a shame. My one existence, and this is how it goes. Hating myself and the cage I'm stuck in.

    I am a useless fucker who can't save themselves. I have tried for years. I have tried meds, I have tried therapy, I have tried improving myself. Apparently, I can't. I can't even take basic care of myself. And I'm supposed to transition?

    self harm

    I want to see blood, so much blood, please let me just do it. Instead of stupid scars I want them open. Watch the blood come out, feel the pain.