Timeline of Computers and Operating Systems By laurenvia Sep 1, 1975 IBM 5100 OS https://en.wikipedia.org/wiki/IBM_5100 Apr 1, 1977 Apple II OS http://applemuseum.bott.org/sections/computers/aII.html Feb 1, 1980 IBM 5120 OS http://www.oldcomputers.net/ibm5120.html May 1, 1981 Apple III OS Apple SOS http://www.oldcomputers.net/appleiii.html Sep 1, 1982 Commodore 64 OS http://www.oldcomputers.net/c64.html Jan 1, 1983 Apple Lisa OS GUI http://www.oldcomputers.net/lisa.html Jul 1, 1985 Atria Amiga 1000 OS http://www.pcworld.com/article/200083/inside_amiga_1000.html Mar 1, 1986 IMB PC XT 286 OS PC-DOS v4 https://prezi.com/cv0bafops5uk/history-of-computers/ Sep 24, 1989 Apple Macintosh Portable http://www.oldcomputers.net/macportable.html Oct 1, 1991 Macintosh PowerBook OS http://www.oldcomputers.net/apple-powerbook.html Sep 1, 1992 Amiga 4000 OS http://www.oldcomputers.net/amiga4000.html Aug 24, 1995 Windows 95 http://mashable.com/2015/08/24/windows-95-launch/ Jul 26, 1997 Mac OS 8 Release https://en.wikipedia.org/wiki/History_of_Mac_OS Aug 31, 1999 Apple PowerMac G4 http://www.everymac.com/systems/apple/powermac_g4/specs/powermac_g4_450.html Feb 17, 2000 Microsoft Windows 2000 https://en.wikipedia.org/wiki/Windows_2000 Mar 24, 2001 Mac OS X http://www.wired.com/2010/03/macos-x-released/ Oct 1, 2006 MacBook Pro http://apple-history.com/mbp_late_06 Jul 22, 2009 Windows 2000 https://en.wikipedia.org/wiki/Windows_7 Jul 29, 2015 Windows 10 https://www.microsoft.com/en-us/windows/features May 16, 2016 Mac OS X El Capitan https://en.wikipedia.org/wiki/OS_X
