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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      • sneak100 [she/her]
        ·
        4 days ago

        I mean it's all relative right? If you're applying transvestigator level scrutiny, then even cis people don't pass. Passing at a glance is already huge progress <3 I don't get why it "doesn't count"

          • imogen_underscore [it/its, she/her]
            ·
            edit-2
            4 days ago

            it seems like that is a definition you have settled on because you can't bring yourself to validate the fact you did pass. you are bullying yourself unfairly, I know how much that sucks and it's a hard habit to break but please u gotta try. people rarely focus on strangers and interrogate their gender... it's a split second decision the cisnormative brain makes. you did pass! you can pass! i really want you to see this!

      • Tommasi [she/her, pup/pup's]
        ·
        4 days ago

        Usually people won't do more than glance at you though. If you pass at a glance, chances are that's how most people see you