Microsoft Corporation, simply called Microsoft, is one of the largest IT companies in the world and is based in Redmond (United States).
Microsoft was founded in 1975 by Bill Gates and Paul Allen and today develops, manufactures, supports or licenses personal computers, smartphones, tablets, game consoles, software, operating systems and services.
Its most famous and used products are the Microsoft desktop operating system Windows, the productivity suite Microsoft Office (Word, Excel, Outlook and PowerPoint), Microsoft Internet Explorer and Bing search engines, Xbox consoles, Windows Phone and Surface mobile devices -+] and the program/app for video chat and Skype chat.
Microsoft is the third richest tech company in the world after Apple and Google with a value of $75.2 billion and annual revenue of $87.6 billion.