Macintosh

Sometimes abbreviated as Mac, the Macintosh is a computer designed by Apple that was first introduced on January 24, 1984. Macintosh computers are known for the easy to use graphical user interface (GUI) that uses icons, windows, and a mouse for point and click operation; opposed to the IBM computers, that at the time used MS-DOS, a non graphical user interface.

Also see: Apple definitions, GUI, IBM Compatible, MAC, PC