Its name refers to El Capitan, the iconic mountain located in the Yosemite National Park in California and has to do with the range of names chosen by the Cupertino-based company after exhausting all the options of large felines. It's version 10.11, the twelfth edition of OS X. MacOS El Capitan, the replacement of Yosemite, was announced during the WWDC of June of 2015. In other words, the operating system based on Unix and developed by Apple that's installed on its range of Macintosh laptop and desktop computers. MacOS is the current name of the former OS X, previously known as Mac OS X.
