jamila - Mac os By MiilaH Jun 1, 1978 introduction of dos 3.1 the first operating system Jan 1, 1984 the first apple system Jan 1, 1985 the secound apple system Jan 1, 1986 The third apple system Jan 1, 1987 the fourth apple system Jan 1, 1988 The 6 apple system May 13, 1991 Apple introduce system 7 Jan 4, 1995 Apple allows other computer companies to clone its computer by announcing its licensed the Macintosh operating system rights to Radius Jan 1, 1997 Apple introduce Mac OS 8 Jan 1, 1997 Apple buys NeXT Software Inc. for $400 million and acquires Steve Jobs, Apples cofounder, as a consultant. Jan 1, 1999 Apple introduces Mac OS 9. Mar 24, 2001 Apple introduces Mac OS X 10.0 code named Cheetah Sep 25, 2001 Apple introduces Mac OS X 10.1 code named Puma Aug 23, 2002 Apple introduces Mac OS X 10.2 code named Jaguar Oct 25, 2003 Apple introduces Mac OS X 10.3 code named Panther Jun 28, 2004 Apple introduces Mac OS X 10.4 code named Tiger at the WWDC Oct 26, 2007 Apple introduces Mac OS X 10.5 code named Leopard Jun 9, 2008 Apple introduces Mac OS X 10.6 code named Snow Leopard and MobileMe at the WWDC