Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services.
31 March 1991
In 1991, Apple introduced the PowerBook, replacing the "luggable" Macintosh Portable with a design that set the current shape for almost all modern laptops. The same year, Apple introduced System 7, a major upgrade to the operating system which added color to the interface and introduced new networking capabilities. It remained the architectural basis for the Classic Mac OS.