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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  • GalaxyBrain [they/them]@hexbear.netEnglish
    22·
    12 days ago

    So, uh, in case anyone in America may need to know this down the line, there is a rail bridge crossing the border from Windsor Ontario to Northern Michigan and freight trains handle customs and entry stuff ahead of time and don’t stop at the border.

      • GalaxyBrain [they/them]@hexbear.netEnglish
        10·
        12 days ago

        I know the hop spot on the Windsor side but wouldn’t be able to help on the states end unfortunately. Never ever ever ever attempt to board a moving train, you are way more liable to die than anything trying, they’re big andoving faster than they look like they are caus they’re big. It’d like a don’t set fire to yourself no matter how cold you are level of don’t fucking do it. You’ve gotta sneak into the rail yard and hide on the train prior to departure and all make fucking sure you’re on one going the right way, for a short distance that’d a little easier to tell with the direction they’re pointed but it’s best you know the schedules and trains before you sneak in for this Intel ask the scariest looking punk you can find, they’re all train nerd. If you do fuck up, sneaking off a train and getting back the other way is easier. Once you’re riding you also need to make sure no one sees you, so watch when the tracks curve and stuff, you can be caught in rear view mirrors way easier on a curve if you’re in the open. Generally everyone is inside the train so you’re fine to kinda just move about freely when it’s moving.