Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is an American multinational computer technology corporation with global annual revenue of US$44.28 billion and 76,000 employees in 102 countries. It develops, manufactures, licenses, and supports a wide range of software products for computing devices.[5][4][2] Headquartered in Redmond, Washington, USA, its best selling products are the Microsoft Windows operating system and the Microsoft Office suite of productivity software.