DEMOS

DEMOS (meaning "Dialogovaya Edinaya Mobilnaya Operatsionnaya Sistema" (Диалоговая Единая Мобильная Операционная Система, ДЕМОС), or "Interactive Unified Portable Operating System") was a Unix-like operating system developed in the Soviet Union. It was derived from BSD. 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 a number of other platforms, including PC/XT, Elektronika-85 (a clone of DEC Professional), and a number of Motorola 68020-based microcomputers.

DEMOS

DEMOS (meaning "Dialogovaya Edinaya Mobilnaya Operatsionnaya Sistema" (Диалоговая Единая Мобильная Операционная Система, ДЕМОС), or "Interactive Unified Portable Operating System") was a Unix-like operating system developed in the Soviet Union. It was derived from BSD. 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 a number of other platforms, including PC/XT, Elektronika-85 (a clone of DEC Professional), and a number of Motorola 68020-based microcomputers.