Apple OS X

Mac OS X v10.0 Cheetah

Mar 24, 2001

Apple reales their first operating system.

Mac OS X v10.1 Puma

Sep 25, 2001

Apple reales their second operating system.

Mac OS X v10.2 Jaguar

Aug 24, 2002

Apple released their third operating system.

Mac OS X v10.3 Panther

Oct 24, 2003

Apple released their fourth operating system.

Mac OS X v10.4 Tiger

Apr 29, 2005

Apple released their fifth operating system.

Mac OS X v10.5 Leopard

Oct 26, 2007

Apple realeased their sixth operating system.

Mac OS X v10.6

Aug 28, 2009

Apple released their seventh operating system.

Mac OS X v10.7 Lion

Jul 20, 2011

Apple released their eighth operating system.

Mac OS X v10.8 Mountain Lion

Jul 25, 2012

Apple released their ninth operating system.

Mac OS X v10.9 Mavericks

Jun 10, 2013

Apple announced that they will release their tenth operating system in Q3 or Q4.