With a little creativity. computers can be made out quite primitive items. Of course, one might need to define what constitutes a computer. The Tinkertoy Comp

With a little creativity. computers can be made out quite primitive items. Of course, one might need to define what constitutes a computer. The Tinkertoy Computer A. K. Dewdney's article, "Computer Recreations: An ancient rope-and-pulley computer is unearthed in the jungle of Apraphul Domino computer http://www.blikstein.com/paulo/projects/project_water.html http://www.blikstein.com/paulo/projects/project_water.html Lehmer sieves How to Build a Working Digital Computer (1967)by Edward Alcosser, James P. Phillips, and Allen M. Wolk