Computing Science and Computers History

One of the things I like is computer science history, what was computing like a decade or two ago and was interesting and the such. Here is a talk given by Bill Gates in 1989 hosted by the University of Waterloo Computer Science Club [http://csclub.uwaterloo.ca/media/1989%20Bill%20Gates%20Talk%20on%20Microsoft] 

I listened to a good portion of the talk a while back and from a history persective I liked it specially the talk on OS/2.