9780670910205 | Viking Pr, August 1, 2001, cover price $24.95 | About this edition: A portrait of early nineteenth-century mathematician Charles Babbage describes his efforts to construct the first computing machine more than one century before the invention of the modern computer.

9780756776169, titled "Difference Engine: Charles Babbage And The Quest To Build The First Computer" | Diane Pub Co, March 1, 2000, cover price $25.00 | About this edition: A portrait of early nineteenth-century mathematician Charles Babbage describes his efforts to construct the first computing machine more than one century before the invention of the modern computer.

9780142001448 | Reprint edition (Penguin USA, November 1, 2002), cover price $15.00 | About this edition: A portrait of early nineteenth-century mathematician Charles Babbage describes his efforts to construct the first computing machine more than one century before the invention of the modern computer.

9780349112398 | New edition (Gardners Books, August 2, 2001), cover price $19.30 | About this edition: In 1821, Charles Babbage set upon building a machine that would carry out complex mathematical calculations without human intervention.

9780563369929 | Bbc Pubns, May 1, 1993, cover price $25.00 | About this edition: Provides a history of the computer and its industry, discussing such topics as the rise of the Apple Computer and research done on artificial intelligence