Microsoft By Gameplayer100 Period: Jan 1, 1970 to Mar 26, 2013 Microsoft Apr 4, 1976 Microsoft Started Aug 25, 1981 Ms-Dos Nov 20, 1985 Windows1.0 May 22, 1990 Windows3.0 Nov 19, 1990 Microsoft Office1.0 Aug 30, 1992 Microsoft Office3.0 Jun 27, 1993 Windows3.1 Aug 24, 1995 Windows95 Aug 30, 1995 Microsoft Office95 Feb 21, 2000 Windows2000 Nov 15, 2001 Xbox is relased by Microsoft Jun 30, 2010 As of June there are over 41.7 million Xbox 360 consoles worldwide.