Brief History of Computers By PGSouthwest Sep 1, 1975 IBM5100 May 1, 1980 Apple III Jan 1, 1982 Commodor 64 Jul 23, 1985 Atari Amiga 1000 Jan 1, 1991 Macintosh Powerbook Jan 1, 1993 Windows NT (OS) Jan 1, 1995 Windows 95 (OS) Aug 31, 1999 Powermac G4 Jan 1, 2000 Windows 2000 (OS) Jan 1, 2001 Mac OS X (OS) Jan 1, 2009 Windows 7 (OS) Aug 1, 2012 Windows 8 (OS) Jul 29, 2015 Windows 10 (OS)
