History of Mac OS X
Kyle Fordrung | On 29, Jul 2012
The recent Mac OS release of 10.8 Mountain Lion has made us here at SoftwareMedia.com reflect on the history of Mac OS X and the advancement it has made over the past decade. From the heyday of PowerPCs and G3s to blazingly fast Intel i7s and monster 27-inch iMacs, the Mac operating system history for version ten has been full of “oohs” and “ahhs”.
For each release of Mac OS X, Apple assigned a large cat from the animal kingdom to be its codename. The names became quite popular in the Apple community, and now it is more common to call a release by its codename that it’s numbered version. This goes the same for OS X Lion—whose release date is expected sometime this summer.
Below we’ve pieced together a Mac OS chronology for version X, complete with codenames, box art, key features and, of course, the Mac OS release dates. We hope you enjoy our tribute to the history of Mac OS X and are as excited as we are about the OS X 10.8 Mountain Lion debut this year.

10.0 Cheetah
Release Date: 3/24/2001
Key Features:
Aqua Interface, Dock

10.1 Puma
Release Date: 9/25/2001
Key Features:
Performance Boost From 10.0, DVD Playback Support

10.2 Jaguar
Release Date: 8/23/2002
Key Features:
Bonjour, Inkwell

10.3 Panther
Release Date: 10/24/2003
Key Features:
Safari, Expose

10.4 Tiger
Release Date: 4/29/2005
Key Features:
Spotlight, Dashboard

10.5 Leopard
Release Date: 10/26/2007
Key Features:
Bootcamp, Time Machine

10.6 Snow Leopard
Release Date: 8/28/2009
Key Features:
Marketed as +0 features; instead, focused on improving existing features for compatibility and functionality

10.7 Lion
Release Date: 7/20/2011
Key Features:
Launchpad, Mac app store, Multitouch Support
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