According to the Bloomberg Billionaires Index, Gates was the world's highest-earning billionaire in 2013, as his net worth increased by US$15.8 billion to US$78.5 billion. As of January 2014, most of Gates's assets are held in Cascade Investment LLC, an entity through which he owns stakes in numerous businesses, including Four Seasons Hotels and Resorts, and Corbis Corp. On February 4, 2014, Gates stepped down as chairman of Microsoft to become "technology advisor" alongside CEO Satya Nadella.
At 17, Gates formed a venture with Allen called Traf-O-Data to make traffic counters based on the Intel 8008 processor. In 1972, he served as a congressional page in the House of Representatives. He was a National Merit Scholar when he graduated from Lakeside School in 1973. He scored 1590 out of 1600 on the Scholastic Aptitude Tests (SAT) and enrolled at Harvard College in the autumn of 1973. He chose a pre-law major but took mathematics and graduate level computer science courses. While at Harvard, he met fellow student Steve Ballmer. Gates left Harvard after two years while Ballmer stayed and graduated magna cum laude. Years later, Ballmer succeeded Gates as Microsoft's CEO and maintained that position from 2000 until his resignation in 2014.
More InfoOn 20 July, the examination of the recorders started in Paris; Champagne rejected the finding by the CAOI that "human error" caused the launch of the missiles which destroyed the aircraft: "It cannot just be the result of a human error. There is no circumstance under (which) a civilian aircraft can be downed just by the result of human error in this day and age... All the facts and circumstances point to more than just a human error, so certainly we will continue to pursue vigorously the investigation."
More InfoThe disaster occurred amid a heightened political crisis in the Persian Gulf, hours after the Iranian military launched 15 missiles towards U.S. military airbases in Iraq in response to the Baghdad International Airport airstrike which killed Iranian general Qasem Soleimani. In response, the U.S. Federal Aviation Administration (FAA), in a notice to airmen (NOTAM), banned all American civil aircraft from flying over Iran, Iraq, the Gulf of Oman and the Persian Gulf. Although the FAA's NOTAM is not binding on non-U.S. airlines, many airlines take it into consideration when making safety decisions, especially after the downing of Malaysia Airlines Flight 17 in 2014. Several airlines, including Austrian Airlines, Singapore Airlines, KLM, Air France, Air India, SriLankan Airlines, Qantas and Vietnam Airlines began to reroute their flights. Other airlines, such as Lufthansa, Emirates, Flydubai, and Turkish Airlines cancelled some flights to airports in Iran and Iraq and would make further operational changes as necessary.
More InfoLater in his career and since leaving day-to-day operations at Microsoft in 2008, Gates has pursued a number of philanthropic endeavors. He has given sizable amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, reported to be the world's largest private charity. 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.
More InfoIBM, the leading supplier of computer equipment to commercial enterprises at the time, approached Microsoft in July 1980 concerning software for its upcoming personal computer, the IBM PC. IBM first proposed that Microsoft write the BASIC interpreter. IBM's representatives also mentioned that they needed an operating system, and Gates referred them to Digital Research (DRI), makers of the widely used CP/M operating system. IBM's discussions with Digital Research went poorly, however, and they did not reach a licensing agreement. IBM representative Jack Sams mentioned the licensing difficulties during a subsequent meeting with Gates and asked if Microsoft could provide an operating system. A few weeks later, Gates and Allen proposed using 86-DOS, an operating system similar to CP/M, that Tim Paterson of Seattle Computer Products (SCP) had made for hardware similar to the PC. Microsoft made a deal with SCP to be the exclusive licensing agent of 86-DOS, and later the full owner. Microsoft employed Paterson to adapt the operating system for the PC and delivered it to IBM as PC DOS for a one-time fee of $50,000.
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