[sideb0ard]

Howard Rheingold's 'Tools for Thought: The History and Future of Mind-Expanding Technology' - covers George Boole, Charles Babbage, Alan Turing, John Von Neumann

Jon Gernter's 'The Idea Factory: Bell Labs and the Great Age of American Innovation' - very cool story about the formation of Bell Labs and covers the Transistor, Satellite comms, the laser, and a ton of other stuff up till, but not disappointingly not including Unix.

John Markoff's 'What the Dormouse Said: How the Sixties Counterculture Shaped the Personal Computer Industry' - what is says!

Ted Nelson's 'Geeks Bearing Gifts' (or any of his YouTube Computers For Cynics videos) - awesome, curmudgeonly alternative (but accurate) version of computer history.

Michael A. Hiltzik's 'Dealers of Lightning: Xerox PARC and the Dawn of the Computer Age' - as someone else mentioned, really great history