Drexel dragonThe Math ForumDonate to the Math Forum

The Math Forum Internet Mathematics Library

A Brief History of Mechanical Calculators

_____________________________________
Library Home || Full Table of Contents || Suggest a Link || Library Help
_____________________________________

Visit this site: http://www.xnumber.com/xnumber/mechanical1.htm

Author:James Redin
Description: An essay on the historical evolution of calculating machines, from the abacus to Babbage's differential machine to today's computers. Contents include: the abacus; the Antikythera calculator; Napier's Bones; Leonardo da Vinci's design; Schickardís machine; the Pascaline; Leibniz' Stepped Drum; Calculating devices during the 18th Century; Thomas' Arithmometer; the Difference Engine; Thomas Fowler's Ternary Calculator; The Baldwin Principle and the Odhner Machines; The Partial Product Multiplying Approach; Troncets or Slide Adders - No Batteries Required; The quest for a keyboard; The "Macaroni Box" and Dorr Felt's Comptometer; William Seward Burroughs; The beginnings of the 10-key machine; Christel Hamann; The Victor Adding Machine Co.; Marchant Calculators; The Walther Company, Friden; The Curta, a Mechanical Wonder; Electromechanical Calculators.

Levels: High School (9-12), College
Languages: English
Resource Types: Calculators
Math Topics: Number Sense/About Numbers, History and Biography, Number Theory, Engineering

[Privacy Policy] [Terms of Use]

_____________________________________
Home || The Math Library || Quick Reference || Search || Help
_____________________________________

© 1994-2014 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Goodwin College of Professional Studies.The Math Forum is a research and educational enterprise of the Drexel University School of Education.