Bill Gates had an estimated net worth of US$90.6 billion at the time. , Gates had a net worth of $95.4 billion, making him the second-richest person in the world, behind Bezos. Later in his career and since leaving Microsoft, Gates pursued a number of philanthropic endeavors. He donated large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation. In 2009, Gates and Warren Buffett founded The Giving Pledge, whereby they and other billionaires pledge to give at least half of their wealth to philanthropy. The foundation works to save lives and improve
Bill Gates since working on the TRS-80 Model 100, but as late as 1989 he wrote code that shipped with the company's products. He remained interested in technical details; in 1985, Jerry Pournelle wrote that when he watched Gates announce Microsoft Excel, "Something else impressed me. Bill Gates likes the program, not because it's going to make him a lot of money (although I'm sure it will do that), but because it's a neat hack." On June 15, 2006, Gates announced that over the next two years he would transition out of his day-to-day role to dedicate more time to philanthropy. He