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1991_xerox-8010-star
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1983_apple-lisa-1
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1984_mac-os-1
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1984_visi-on
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1985_amiga-workbench-101
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1985_windows-1.1
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1986_geos_commodore_64
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1987_windows-2
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1988_IBM-OS_2-1.1
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1989_nextstep-1.0
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1990_windows-3.0
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1991_amiga-workbench-2.0
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1991_Mac Os 7
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1992 windows 3.11
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1995 windows 95
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1996 IBM OS 2 warp 4
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1997 Mac OS 8
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1998 windows 98
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1998 KDE1.0
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1999 GNOME 1.0
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2001 Mac OS x 1
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2001 Windows XP
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2002 kde 3
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2007_windows-vista
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2007_Mac-OS_X-leopard
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2008_gnome_2.24
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2008_kde-4
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2009_windowws_7
