little company called microsoft. >> bill gates was that unusual combination of a tech guy who was as good as the best tech guys, but he also had a business sense, and he had a business vision. >> at the time, everyone was making it up as they went along. there was nothing that came before it. there was no personal computer industry. so when gates said to ibm, how about this, we'll write you an operating system for your pc, and we'll get a cut of every machine you sell. and in addition, he made sure that it was not an exclusive license. that he was going to be able to sell this software to ibm, but he was also going to be able to sell the same software to other people. because gates intuited that there were going to be people that would build knockoffs of ibm and the pc clones. >> it was a genius move by bill gates, who was still in his early 20s when he made this decision. and you've got these guys at ibm in blue shirts and dark ties looking at this company microsoft and saying, who cares? software, who cares about software?