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Technologies in 1984 >

Operating Systems in 1984

1985→

←1983

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MS-DOS
(since 1982) 10
CP/M
(since 1981) 9
Apple DOS
(since 1980) 7
Commodore DOS
(since 1981) 7
Mac OS ("Classic")
(since 1984, that's this year!) 5
VMS
(since 1980) 3
Berkeley Software Distribution
(since 1981) 2
SunOS
(since 1983) 2
IBM i
(since 1982) 1
RT-11
(since 1983) 1
TSX-Plus
(since 1983) 1
MVS
(since 1984, that's this year!) 1