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Operating Systems in 2009

Everyone

Sort by: Name Count

(since 1992) 93

(since 2003) 80

(since 1998) 55

(since 1996) 50

Mac OS X v10.5 (Leopard)

(since 2006) 41

Mac OS X v10.6 (Snow Leopard)

(since 2009, that's this year!) 40

Microsoft Windows

(since 1988) 36

(since 2008) 35

(since 1995) 28

(since 1982) 26

(since 2006) 24

(since 1993) 19

(since 2000) 16

(since 1988) 12

Red Hat Enterprise Linux

(since 1999) 12

(since 1995) 11

(since 1993) 10

Mac OS X v10.4 (Tiger)

(since 1996) 7

(since 1994) 6

(since 1996) 6

(since 1981) 6

(since 1997) 5

(since 2003) 4

(since 1989) 4

(since 2002) 4

(since 2000) 4

Mac OS ("Classic")

(since 1984) 4

(since 1999) 4

(since 1983) 3

(since 1998) 3

(since 1985) 3

(since 1994) 3

(since 1991) 2

(since 1988) 2

(since 1990) 2

(since 1981) 2

(since 1999) 2

(since 1996) 2

(since 2000) 1

(since 1980) 1

(since 2009, that's this year!) 1

Mac OS X v10.1 (Puma)

(since 2001) 1

(since 1980) 1

(since 1997) 1

(since 1991) 1

(since 1987) 1

(since 1986) 1

(since 2004) 1

(since 1982) 1