Since computers are my main hobby, I enjoy reading books on computers. But after a while too many reference and programming books can turn the brain to mush. I am always on the look out for books that talk about computers in non-technical terms. I have found a number of good books that discuss numerous aspects of computers, besides how to program them. The books I found can be broken into two different categories: history and security.
The Authoritative Website for Timex/Sinclair Computers