MOS
These are three different operating systems - Czechoslovakia for EC 1021, another system for RPP -16, and finally Russian. MOS also means "Machine Operating System" for Acorn computers.
Czechoslovak system from VÚMS for computer EC 1021 (ZPA 6000/20) from VÚMS. The minimum requirement for RAM was 16 kib.
Mos (RPP-16)
For RPP-16
MOBILNAJA Operationnaja sistema
Russian OS based on V7 Unix, "developed" in Nicevt, USSR, based on UTS.
Runs on EC 1045
Mos successors include Mnos, Demos, Inmos.
References
- https://ndk.cz/view/uuid:9ff0b740-df98-11ee-9ab9-005056827e52 (WebArchive) (archive.is)
- http://prog-story.technicalmuseum.cz/index.php/m-virtualni-sbirky-tm-v-brne/interni-autorske-texty-rubriky/390-vums-praha-ruzne-dokumenty-k-historii/6033-vums-praha-ruzne-dokumenty-k-historii (WebArchive) (archive.is)