Vintage Calculators


Subject:
Mathematics , Collectors & Collecting , Calculators , Collectibles

Description:
Explores the history of calculating devices beginning 5000 years ago, from the abacus to the invention of the electronic calculator. Includes a drawing or photo of each device, an explanation of how it works, and its inventor. Features a discussion forum, and related links.

Language:
English

Source:
http://www.xnumber.com/xnumber/vintage.htm


PID= res:lii-5918