Happy 9th Birthday Mac OS X!

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By: switchtoamac at: 4:33 PM on March 24, 2010 | Comments (0)

Today marks Mac OS X's 9th birthday as Apple first unveiled Mac OS X nine years ago on March 24, 2001 as a replacement to the Mac OS 9 operating system.  Mac OS X (pronounced Mac O-S-Ten) has come a long way over the past nine years including a major rewrite that transitioned the OS to run on Intel processors..

From Apple's Press Release from March 21, 2001
Mac OS X Hits Stores This Weekend

CUPERTINO, California--March 21, 2001--Apple® today announced that beginning this Saturday, March 24, customers can buy Mac® OS X in retail stores around the world. Mac OS X is the world's most advanced operating system, combining the power and openness of UNIX with the legendary ease of use and broad applications base of Macintosh®.

"Mac OS X is the most important software from Apple since the original Macintosh operating system in 1984 that revolutionized the entire industry," said Steve Jobs, Apple's CEO. "We can't wait for Mac users around the globe to experience its stability, power and elegance."

The full press release is available in the Apple PR library.

A summary of Mac OS X's release history:
  • 10.0 Cheetah - March 24, 2001
  • 10.1 Puma - September 25, 2001
  • 10.2 Jaguar - August 24, 2002
  • 10.3 Panther - October 24, 2003
  • 10.4 Tiger - April 29, 2005
  • 10.4 Intel Tiger - January 10, 2006
  • 10.5 Leopard - October 26, 2007
  • 10.6 Snow Leopard - August 28, 2009
For a history of Mac OS X, read our "What is Mac OS X" guide.  Happy Birthday to the "world's most advanced operating system"!

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