Apple OS History

Year Event
1978 In June of 1978 Apple introduces Apple DOS 3.1, the first operating system for the Apple computers.
1984 Apple introduces System 1.
1985 Apple introduces System 2.
1986 Apple introduces System 3.
1987 Apple introduces System 4.
1988 Apple introduces System 6.
1991 Apple introduces System 7 operating system May 13, 1991.
1995 Apple allows other computer companies to clone its computer by announcing its licensed the Macintosh operating system rights to Radius on January 4.
1997 Apple introduces Mac OS 8.
1997 Apple buys NeXT Software Inc. for $400 million and acquires Steve Jobs, Apples cofounder, as a consultant.
1999 Apple introduces Mac OS 9.
1999 Apple releases Mac OS X Server 1.0 on March 16, 1999.
2001 Apple introduces Mac OS X 10.0 code named Cheetah and becomes available March 24, 2001.
2001 Apple introduces Mac OS X 10.1 code named Puma and becomes available on September 25, 2001.
2002 Apple introduces Mac OS X 10.2 code named Jaguar and becomes available on August 23, 2002.
2003 Apple introduces Mac OS X 10.3 code named Panther October 25, 2003.
2004 Apple introduces Mac OS X 10.4 code named Tiger at the WWDC on June 28, 2004.
2007 Apple introduces Mac OS X 10.5 code named Leopard October 26, 2007.
2008 Apple introduces MobileMe at the WWDC on June 9, 2008.
2009 Apple introduces Mac OS X 10.6 code named Snow Leopard at the WWDC on June 8, 2009.
2010 Apple introduces Mac OS X 10.7 code named Lion at the "Back to the Mac" event on October 20, 2010.
2012 Apple releases Mac OS X 10.8 code named Mountain Lion on July 25, 2012.
2013 Apple introduces Mac OS X 10.9 code named Mavericks at the WWDC on June 10, 2013.
2014 Apple introduces Mac OS X 10.10 code named Yosemite at the WWDC on June 2, 2014.

Computer History