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Operating Systems in 2021

Everyone

Sort by: Name Count

(since 1992) 88

(since 2003) 82

(since 1996) 54

(since 2008) 44

Mac OS X v10.6 (Snow Leopard)

(since 2009) 42

(since 1998) 38

Microsoft Windows

(since 1988) 32

(since 1995) 28

(since 1982) 24

(since 1993) 19

(since 2006) 14

Mac OS X v10.5 (Leopard)

(since 2006) 13

(since 1988) 12

(since 2000) 11

Mac OS X v10.7 (Lion)

(since 2011) 10

Red Hat Enterprise Linux

(since 1999) 9

(since 1995) 8

(since 1993) 8

(since 2002) 7

(since 1994) 6

Mac OS X v10.4 (Tiger)

(since 1996) 6

(since 1996) 6

(since 1981) 6

(since 1998) 5

(since 1997) 5

(since 2003) 4

(since 1999) 4

(since 1989) 4

Mac OS ("Classic")

(since 1984) 4

(since 1985) 3

(since 1983) 3

(since 2000) 3

(since 1994) 3

(since 1981) 2

(since 2009) 2

(since 1988) 2

(since 1991) 2

(since 1996) 2

(since 2000) 2

(since 1999) 1

(since 1987) 1

(since 1980) 1

(since 1982) 1

(since 1997) 1

(since 1980) 1

(since 1986) 1

(since 1991) 1

Mac OS X v10.1 (Puma)

(since 2001) 1

(since 2004) 1