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Mac OS X

Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Mac OS X, whose X is the Roman numeral for 10. Mac OS X has the following versions:

Mac OS X 10.0: "Cheetah"
On March 24, 2001, Apple released Mac OS X v10.

Mac OS X 10.1: "Puma"
Later that year on September 25, 2001, Mac OS X v10.1 (internally codenamed Puma) was released.

Mac OS X 10.2: "Jaguar"
On August 23, 2002, Apple followed up with Mac OS X v10.2 "Jaguar", the first release to use its code name as part of the branding

Mac OS X 10.3: "Panther"
Mac OS X 10.3 "Panther" was released on October 24, 2003.

Mac OS X 10.4: "Tiger"
Mac OS X 10.4 "Tiger" was released on April 29, 2005. Apple stated that Tiger contained more than 150 new features.

Mac OS X 10.5: "Leopard"
Mac OS X 10.5 "Leopard" was released on October 26, 2007.

Mac OS X 10.6: "Snow Leopard"
Mac OS X v10.6 "Snow Leopard" was released on August 28, 2009.

Mac OS X 10.7: "Lion"
Mac OS X v10.7 "Lion" was released on July 20, 2011.

Apple also produces specialized versions of Mac OS X for use on its consumer devices. iOS, which is based on Mac OS X, runs on the iPhone, iPod Touch, iPad, and the 2nd generation Apple TV.

Mac cleaner - EaseUS CleanGenius can help you remove junk files and free up disk space on your Mac drive, it supports Mac OS X 10.6 Snow Leopard and 10.7 Lion.

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