Acknowledgment 4
Preface 5
Chapter One: History of Counting 7
Chapter Two: Adding Machines,
Calculator and Counters 13
Chapter Three: Combination Adding
Machines and Cash Drawers 154
Chapter Four: Combination Adding
Machines and Typewriters 169
Chapter Five: Slide Rules 178
Chaptér Six: Electronic Calculators
and Desktop Computers 197
Chapter Seven: Chronological Time Line 220
Bibliography 223
Index 224
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Humanity's hunt for calculating devices probably started with the use of small pebbles to keep track of numbers. The counting inventions progressed through the abacus, early mechanical calculators, and other ingenious devices culminating in today's computers. In this new book, Thomas Russo chronicles 600 years of caculating devices, providing valuable information for historians and collectors alike. Stretching from ancient times to the earliest computers, this book provides an insight into breadth and depth of human creativity and drive. With 500 color photographs, descriptive captions, and a guide to current values, this is an essential guide in a field that is finding ever more enthusiasts.
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