Maybe we'll find out if they would have worked or not: http://www.nytimes.com/2011/11/08/science/computer-experts-building-1830s-babbage-analytical-engine.html?_r=1&scp=1&sq=Babbage&st=cse charley Charles A. Seavey, Professor School of Library and Information Management Emporia State University 1200 Commercial St. Emporia KS, 66801 800-552-4770 (SLIM,) 620-341-5816 (direct) [log in to unmask] Ranganathan Said It All!