to do then now would be retro, to do then then was very nowtro

Operating Systems in 2001

Everyone

Sort by: Name Count

(since 1992) 64

Microsoft Windows

(since 1988) 49

(since 1998) 39

(since 1982) 35

(since 1997) 35

(since 2000) 34

(since 1996) 28

(since 1988) 14

(since 1999) 13

Mac OS ("Classic")

(since 1984) 12

(since 1996) 11

(since 1994) 11

(since 1993) 11

(since 1995) 10

(since 1995) 9

Mac OS X v10.0 (Cheetah)

(since 2000) 7

(since 1993) 7

(since 1996) 7

(since 1994) 7

Mac OS X v10.1 (Puma)

(since 2001, that's this year!) 6

(since 1981) 6

(since 1983) 5

(since 1989) 4

(since 1985) 3

(since 1980) 3

(since 1981) 2

(since 1982) 2

Red Hat Enterprise Linux

(since 1999) 2

(since 1995) 2

(since 1997) 2

(since 1988) 2

(since 1998) 2

(since 1991) 2

(since 1986) 2

(since 1991) 2

(since 1990) 1

(since 1999) 1

(since 1994) 1

(since 1980) 1

(since 1991) 1

(since 1986) 1

(since 2000) 1

(since 2000) 1