to do then now would be retro, to do then then was very nowtro
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Technologies
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Years
Technologies in 1989
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Operating Systems in 1989
1990→
←1988
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AmigaOS
(since 1985) 5
Apple DOS
(since 1980) 9
Berkeley Software Distribution
(since 1981) 2
Commodore DOS
(since 1981) 12
CP/M
(since 1981) 4
GEOS
(since 1986) 1
HP-UX
(since 1989, that's this year!) 1
IBM i
(since 1982) 1
Mac OS ("Classic")
(since 1984) 9
Microsoft Windows
(since 1988) 9
MS-DOS
(since 1982) 43
OS/2
(since 1989, that's this year!) 6
RISC OS
(since 1988) 4
SunOS
(since 1983) 5
System 6
(since 1986) 5
VMS
(since 1980) 6
Windows 3.1
(since 1988) 13