Mac OS X Server
Mac OS is the operating system created for Apple Computer's line of personal computers. Mac OS has a long history, with the original version being released in 1984 to run on the original Macintosh computer. In 1999, Apple released its last major revision to its aging 'Classic' operating system, Mac OS 9.
The successor to the Classic Mac OS was Mac OS X, a UNIX-like operating system with a friendly and familiar user interface. Successive versions of Mac OS X have a decimal numeralfor example, Mac OS X.1, X.2, and so on.
Because Mac OS X uses Linux/UNIX technology, most of the previous section on Linux applies to a Mac OS X server.