A couple of books I've read recently and recommend:
Just for Fun: The Story of an Accidental Revolutionary by Linus Torvalds and David Diamond. A nice, easy to read book that serves as a biography for both Linus Torvlads and the operated system he wrote, Linux.
Revolution in the Valley by Andy Hertzfield. A collection of short stories detailing the development and introduction of the Macintosh computer, by one of the people that did it. You can read the stories online at Folklore.org but I often find I prefer reading printed books over text on the screen.