Microsoft is an American multinational technology company that develops, manufactures and sells computer software, consumer electronics and personal computers and services. It is best known for its Microsoft Windows line of operating systems, Microsoft Office suits, and for its Xbox consoles. The company has operations in more than 100 countries. Its corporate headquarters, informally known as the Microsoft Redmond campus, is located at One Microsoft Way in Redmond, Washington. Microsoft was founded by Paul Allen and Bill Gates on April 4, 1975.