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![The Evolution of Mac OS X [cover]](https://cms-images.idgesg.net/images/article/2015/09/evolution_of_mac_osx_slide_01-100618314-gallery.idge.jpg)
Fifteen years ago, on March 24, 2001, Apple released the first version of its Mac OS X operating system, noteworthy for its UNIX architecture.
OS X has been known over the years for its simplicity, aesthetic interface, advanced technologies, applications, security and accessibility options. From the Finder to Spotlight, the Dock to iCloud, OS X has been integrated into Apple's hardware, as well as iOS devices, so users can easily work and navigate.
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