Gates became interested in computer programming when he was 13, during the era of giant mainframe computers. His school held a fund raiser to purchase a teletype terminal so students could use computer time that was donated by General Electric. Using this time, Gates wrote a tic tac toe program using BASIC, one of the first computer languages. Later he created a computer version of Risk, a board game he liked in which the goal is world domination. At Lakeside, Bill met Paul Allen, who shared his interest in computers. Gates and Allen and two other students hacked into a computer belonging to Computer Center Corporation (CCC) to get free computer time but were caught. After a period of probation, they were allowed back in the computer lab when they offered to fix glitches in CCCs software. At age 17, Gates and Allen were paid $20,000 for a program called Traf O Data that was used to count traffic.
In early 1973, Bill Gates served as a congressional page in the U.S. House of Representatives. He scored 1590 out of 1600 on the SAT and was accepted by Harvard University. Steve Ballmer, who became CEO of Microsoft after Bill retired, was also a Harvard student. Meanwhile, Paul Allen dropped out of Washington College to work on computers at Honeywell Corporation and convinced Gates to drop out of Harvard and join him in starting a new software company in Albuquerque, New Mexico. They called it Micro Soft. This was soon changed to Microsoft, and they moved their company to Bellevue, Washington.
In 1980, IBM, one of the largest technology companies of the era, asked Microsoft to write software to run their new personal computer, the IBM PC. Microsoft kept the licensing rights for the operating system (MS DOS) so that they earned money for every computer sold first by IBM, and later by all the other companies that made PC computers. Microsoft grew quickly from 25 employees in 1978 to over 90,000 today. Over the years, Microsoft developed many new technologies and some of the worlds most popular software and products such as Word and Power Point. Although some have criticized Gates for using questionable business practices, he built Microsoft into one of the largest companies in the world. He has been described as brilliant but childlike, driven, competitive, intense, fun, but lacking in empathy.
Bill Gates is one of the richest men in the world. In 2012, his $61 billion dollars in assets made him the worlds second richest man according to Forbes Magazine. In 2006, Gates announced that he would cut back his involvement at Microsoft to spend more time on philanthropy and his foundation. The Bill and Melinda Gates Foundation supports many causes including the quest to eradicate Polio, fighting AIDS, malaria and tuberculosis; providing vaccinations for children; and even reinventing the toilet among many other things.