Author: Lehrenbaum, Burton Illust. by Virgil Partch:
Title: By The Numbers: The Story of Counting From The Abacus To The Artificial Brain.
Description: Hartford, Connecticut, Veeder-Root, 1966 Paperback, Good-, some marking to covers, contents clean and tight, pp146.

Keywords: numbers maths abacus counting artificial brain history machines calculators Virgil Partch VIP


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