Can someone tell me what this means?

This from today's New York Times story at http://www.nytimes.com/2007/08/11/technology/11novell.html about SCO losing its claims to ownership of Unix: "The Unix operating system, which has become popular with some independent-minded PC users as well as in the corporate world, was developed by AT&T researchers at Bell Labs beginning in 1969. During the 1970s, the operating system became highly influential in academic computing and in computer science departments. In the ?80s, it had a significant impact in the computer workstation and minicomputer markets, although it never gained a significant foothold in the personal computer business until Steven P. Jobs brought a version of Unix with him when he returned to Apple Computer in 1997. Some PC makers have begun to offer versions of Linux instead of Microsoft?s Windows operating systems." What does Apple and Steve Jobs have to do with Unix? Cheers, Chuck