OS X Mountain Lion (version 10.8) is the ninth
major release of
OS X (formerly Mac OS X),
Apple Inc.'s desktop and
server operating system for
Macintosh computers. OS X Mountain Lion was released on July 25, 2012 for purchase and download through Apple's
Mac App Store, as part of a switch to releasing OS X versions online and every year. Named to signify its status as a refinement of the previous OS X version,
Lion, Apple's stated aims in developing Mountain Lion were to allow users to more easily manage and synchronise content between multiple Apple devices and to make the operating system more familiar.