OS Timeline By simoncharles1 Jan 1, 1981 Microsoft's 1st OS MS-DOS Jan 1, 1984 Apple OS release Nov 20, 1985 Window's 1st OS Windows. 1.0 Jan 1, 1991 Linux OS release Nov 5, 2007 Android OS release Nov 19, 2009 Chrome OS release Jun 6, 2011 Apple iOS Aug 1, 2012 Windows 8 release Jul 1, 2015 Windows 10 release
