"Drawing on previously unused archival material, The Difference Engine is a tale of both Babbage's nineteenth-century quest to build a calculating engine and its twentieth ...

"In 1821 an inventor and mathematician, Charles Babbage, was poring over a set of mathematical tables. Finding error after error Babbage exclaimed, "I wish to God these ...

"In 1821 an inventor and mathematician, Charles Babbage, was poring over a set of mathematical tables. Finding error after error Babbage exclaimed, "I wish to God these ...