eWeek: "Forty years ago, a new operating system called Unix was created, and a new revolution in computing began. Today, Unix-based operating systems still run many of the biggest and most important computing systems in the world. In fact, the core of Unix can be found in every major operating system in use today, from Apple's Mac OS X to Linux to, yes, even Windows. If Unix itself hadn't forked into many different versions, it might very well be the dominant OS in use today. In honor of the 40th anniversary of Unix, we're [eWeek] taking a look at some of the many different iterations of Unix operating systems."


