Apple Inc. is a public corporation traded on the NASDAQ stock exchange. Headquartered in Cupertino, California, the company is the largest publicly traded company in the world in terms of its capitalization and is one of the top sellers of personal computers. Founded in 1976, Apple is known for developing new technologies that have changed mobile communications and devices, including the iPhone, the iPod and the iPad. In addition to selling their products through third-party stores, Apple sells direct to consumers via the Apple.com website and more than 400 Apple retail stores located around the world. Apple also produces a number of popular software programs including the web browser Safari and the productivity suite iWork.