What is the history between Bill Gates and IBM?

Ans : After Bill Gates and his friend Paul Allen made Microsoft, they wanted to goet it out there, so they told IBM about it who then wanted to see it. So, IBM took it and discussed it, not reaching a licensing agreement, but that Microsoft had to get a good operating system. Gates got 86-DOS, which is similar to CP/M and which Tim Paterson had made for hardware like a computer. Microsoft made a deal with them that he would be exclusive licensing agent, and later on become the full owner, of the operating system 86-DOS. Gates then insisted that IBM let Microsoft keep the copyright on 86-DOS, because other vendures werre believed to eventually clone IBM's system.