Apple Computer, Inc. (NASDAQ: AAPL and LSE: ACP) is an American
computer technology company. Its headquarters are located at 1 Infinite
Loop, Cupertino, California, part of Silicon Valley. Apple was a
major player in the personal computer revolution in the 1970s.
The Apple II microcomputer, introduced in 1977, was a hit with home
users. In 1983, Apple introduced the first commercial personal computer
to use a graphical user interface (GUI), the Lisa, influenced in
part by the Xerox Alto. In 1984, Apple introduced the Macintosh
(commonly called the "Mac"), the first successful commercial
implementation of a GUI. GUIs are now used in all major computer
operating systems from Windows XP to Unix-like systems using X Window
System desktop environments such as CDE, KDE, and GNOME.
As of 2006, Apple is well-known as a manufacturer of computer hardware
and software. Popular Apple hardware products include the iMac and
iPod. Apple is also the publisher of the iTunes music application
and store as well as the company's current computer operating system,
Mac OS X.