How Computers Work -- Circa 1979
Guinnessy writes "In a younger, more innocent time, Ladybird Books came out with a series of children's books called "How things work." Someone has put the 1971 and 1979 versions of How Computers Work onto the web. It's a fascinating glance at how much computers have advanced since the silicon chip was introduced. State-of-the-art in 1971 consisted of fitting thirty components into a 1 cm3 volume."
Or in other words, "Don't do what I just did."
I'm not trying to argue one side of the copyright debate or the other here, but please choose a position and be consistent about it: either you respect the copyright (in which case you don't put these books on the web without permission in the first place) or you don't respect it (in which case you leave off the notice lecturing people not to do it).
http://alternatives.rzero.com/