How did Bill Gates invent Microsoft?

Bill Gates invented Microsoft in 1985. Bill Gates III was born on October 28, 1955. Bill is an American business magnate, philanthropist, the world's third richest person (as of February 8, 2008), the richest American (as of September 17, 2008), and chairman of Microsoft, the software company he founded with Paul Allen. During his career at Microsoft, Gates held the positions of CEO and chief software architect, and remains the largest individual shareholder with more than 8 percent of the common stock. He has also authored or co-authored several books.