Microsoft was founded on April 4, 1975 by Bill Gates and Paul Allen to produce software for early personal computers like the Altair 8800. It has grown into a massive technology corporation that develops, manufactures, licenses, supports and sells computer software, electronics, personal computers and related services operating worldwide from its headquarters in Redmond, Washington. Some of Microsoft's most well-known products include the Windows operating system, Microsoft Office suite, and Internet Explorer and Edge web browsers.