First commercial OS Apple [1983]

Microsoft Windows 1.0 [1985]

Apple Macintosh II [1987]

MS Windows 2.0 [1987]

NeXTStep OS [1988]

OS/2 Version 2.0. IBM [1992]

Microsoft Windows 3.11 [1993]

MS Windows 95 [1995]

IBM OS/2 Warp 4 [1996]

KDE 1.0 for Linux [1998]

Gnome 1.0 [1999]

MacOS X on Unix base [1999]

Apple Aqua, new MacOS X theme[2000]

MS Windows XP [2001]

Kubuntu Linux Dapper Drake [2006]

Windows Vista [2006]

Linspire [2006]

OS X Leopard from Apple [2007]

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