Apple Inc. designs, manufactures, and markets mobile phones and media devices, computers, notably the iPhone, iPad, Mac, iPod, Apple Watch, and Apple TV. The company also conceives and sells a range of related software and services: the iPhone OS (iOS), OS X and watchOS operating systems, iCloud, and Apple Pay. Apple also sells accessories, support offerings, and third-party digital content and applications.
The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.