Apple Inc. (NASDAQ: AAPL; formerly Apple Computer, Inc.) is an American multinational corporation that designs and markets consumer electronics, computer software, and personal computers. The company's best-known hardware products include the Macintosh line of computers, the iPod, the iPhone and the iPad. Apple software includes the Mac OS X operating system; the iTunes media browser; the iLife suite of multimedia and creativity software; the iWork suite of productivity software; Aperture, a professional photography package; Final Cut Studio, a suite of professional audio and film-industry software products; Logic Studio, a suite of music production tools; the Safari web browser; and iOS, a mobile operating system. As of October 2010[update], the company operates 317 retail stores in ten countries, and an online store where hardware and software products are sold. As of September 2011[update], Apple is the largest publicly traded company in the world by market capitalization and the largest technology company in the world by revenue and profit.