- Microsoft was founded in 1975 by Bill Gates and Paul Allen and is based in Redmond, Washington. It develops software including the widely popular Windows operating system. - In 1995, Microsoft launched Windows 95, selling 1 million copies in 4 days. Bill Gates left Microsoft in 2008 to pursue charity work. - Microsoft India was established in 1990 and has expanded to include six main units. Its research and development center in Hyderabad has grown from 20 employees in 1998 to 1,500 by 2008.