Mac OS X



Mac OS X is the tenth version of Apple's Mac OS. The server version debuted in 1999, followed by Mac OS X Cheetah in 2001. Since then, versions of Mac OS X have continued to be named after large cats. The latest version of Mac OS X Snow Leopard (10.6), the ten referring to the fact that it is the tenth version of the Macintosh Operating System, and the 6 referring to the fact that Snow Leopard is the sixth version of Mac OS X.