The most famous story about his entrepreneurship is that when IBM asked him to write an operating system for IBM's new personal computer, Gates didn't have a ready-made program at hand, but he knew that a small company named "Seattle Computer Products" had an operating system called 86-DOS, so he decisively bought the system for $75,000. It was rewritten and renamed as MS-DOS, and it was this operating system named MS-DOS that was put into IBM's personal computer. At present, there are about 70 million IBM-compatible personal computers in the world, of which MS-DOS system accounts for about 90% of the market. In addition, Apple computer accounts for 10% of the market, and the software supplier of Apple computer is also Microsoft.
This transaction is called an epoch-making transaction. Gates has a flexible mind and believes that IBM's personal computers will dominate the computer market in the future. He bought something that didn't actually belong to him and immediately sold it to Tian IBM.