Read "The Innovators"
/For the past few weeks I've been working my way through "The Innovators: How a Group of Inventors, Hackers, Geniuses and Geeks Created the Digital Revolution" by Walter Isaacson. It's a great history of computing, all the way from the letters of Ada Lovelace to the spelling mistake that made Google what it is today.
If "The Thrilling Adventures of Lovelace and Babbage" have whetted your appetite for a book that gives the full story of the machines that underpin so much of our lives you should read this book. Well written and well referenced, with some great background material.