Apple Inc. (NASDAQ: AAPL, LSE: ACP), formerly known as apple computer, Inc., changed its name on January 9, 2007 at Macworld Expo in San Francisco. Headquartered in Cupertino, California, USA, its core business is electronic technology products. Apple II helped the personal computer revolution in the 1970s, and the Macintosh relay continued to grow in the 1980s. Its most famous products include Apple II, MAC, iPod music player, iTunes Store, iPhone smartphone and iPad tablet. Apple is famous for its innovation in high-tech enterprises.