operacijski sustav By azeneli 1951 LEO - Lyons Electronic Office https://en.wikipedia.org/wiki/LEO_(computer) 1953 DYSEAC – an early machine capable of distributing computing https://en.wikipedia.org/wiki/DYSEAC 1960 IBSYS (IBM for its 7090 and 7094) https://en.wikipedia.org/wiki/IBM_7090/94_IBSYS 1961 MCP (Burroughs Master Control Program) https://en.wikipedia.org/wiki/Burroughs_MCP 1963 JOSS, an interactive time-shared system that did not distinguish between operating system and language https://en.wikipedia.org/wiki/JOSS 1970 DOS-11 (PDP-11) https://en.wikipedia.org/wiki/DEC_BATCH-11/DOS-11 1970 Data General RDOS https://en.wikipedia.org/wiki/Data_General_RDOS 1974 RSX-11D https://en.wikipedia.org/wiki/RSX-11 1976 Apple DOS https://en.wikipedia.org/wiki/Apple_DOS 1978 Lisp machine https://en.wikipedia.org/wiki/Lisp_machine
