Operating systems By silverhunter11 Jan 1, 1985 microsoft windows Jan 1, 1991 linux os release Jun 15, 2011 chromebook release Aug 1, 2012 windows 8 release Sep 17, 2013 android os release Sep 17, 2014 apple ios 8 release Oct 6, 2014 apple os release date Jun 1, 2015 windows 10 release