MacOS (Tuesday Jan 1, 1985 to Wednesday Jul 10, 2019)
Windows (Wednesday Nov 20, 1985 to Present)
Linux (Tuesday Sep 17, 1991 to Present)
Symbian OS (Saturday Jan 1, 1994 to Wednesday Jan 1, 2014)
Java (programming language) (Tuesday May 23, 1995 to Present)
iOS (Saturday Jan 1, 2005 to Present)
