William Henry "Bill" Gates III (born October 28, 1955) is the co-founder, chairman, former chief software architect, and former CEO of Microsoft Corporation. He is also the founder of Corbis, a digital image archiving company. Forbes magazine's The World's Billionaires list has ranked him as the richest person in the world for the last twelve consecutive years. In 1999, Gates' wealth briefly surpassed $100 billion making him America's first centibillionaire. According to the Forbes 2004 magazine, Bill Gates's net worth was approximately $46.6 billion. When family wealth is considered, his family ranks second behind the Walton family.
Gates is one of the best-known entrepreneurs of the personal computer revolution. He is widely respected for his foresight and ambition. He is also frequently criticized as having built Microsoft through unfair or unlawful business practices. Since amassing his fortune, Gates has pursued a number of philanthropic endeavors, donating large amounts of money (about 52% of his total fortune) to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, founded in 2000. 2008 June bill retires from Microsoft & Devotes Himself to Philanthropy after Retirement.