Entrepreneur. Born William Henry Gates, III, on October 28, 1955, in Seattle, Washington. Gates began to show an interest in computer programming at the age of 13 at the Lakeside School. He pursued his passion through college. Striking out on his own with his friend and business partner Paul Allen, Gates found himself at the right place at the right time. Through technological innovation, keen business strategy, and aggressive competitive tactics he built the world’s largest software business, Microsoft. In the process he became one of the richest men in the whole world.