This book chronicles the history of digital computing from its humble beginnings as an art form of the primitives. It then concludes with a discussion of microprocessors and limitations imposed by quantum mechanics. The journey takes the reader from the primitives through the ancient societies of Mesopotamia, Greece, and Rome to capture the raw essence of computing. Eventually the study reaches the dawn of the mechanical calculator that evolves into the modern computer. Subjects covered in this book in addition to computer history are electricity, mechanical calculators, difference engines,...