By 1975,Gates and a partner, Paul Allen, had developed a software called BASIC. This was not the first program ever created, but its inventors were the first to decide that people who wanted to use it should pay for it.

　　BASIC was a success because until it came along there had been no efficient way of getting computers to carry out instructions. Although he had not yet completed his degree, Gates left university and went to work full time for the new company he had formed called Microsoft.

　　His next project (项目) was the software program that made him famous and very rich. It was called DOS, short for Operating System, and it was purchased (购买) by IBM in 1980.Today it is the operating system used in more than 14 million personal computers around the world.

　　As chief executive officer (首席执行官) of Microsoft, Gates is known as a bright man, but one who is not easily satisfied. He is quick to criticize ( 批评) his staff and hates to be questioned about decisions he has made. He was regarded as a loner an unfashionable boring computer nut until his marriage to Microsoft manager Melonda French on New year’s Day 1994.Yet to most people now, Gates is a person who is, in spite of his great wealth, humble (谦恭) and ordinary. He spends his money carefully, he eats in fast-food restaurants and flies economy (经济) class. And when praised for Microsoft’s great success, he has been heard to say, “All we do is put software in a box and if people see it in the stores and like it, they buy it.”

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