I would recommend http://www.bottomupcs.com/ http://www.bottomupcs.com/ if you're looking for a quick crash course. It's a bit out of date but its the shortest

I would recommend http://www.bottomupcs.com/ http://www.bottomupcs.com/ if you're looking for a quick crash course. It's a bit out of date but its the shortest book I've found which covers most of the computer science stack.