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Before the Computer 1623-1914

 

         
Wilhelm Schickard Blaise Pascal Gottfried Wilhelm Leibniz Joseph-Marie Jacquard  
         
Charles Babbage Ada Lovelace Samuel Morse Alexander Graham Bell  
     
John Edgar Thomson Daniel Craig McCallum Thomas de Colmar William Burroughs
         
Dorr Eugene Felt Christopher Sholes Eliphalet Remington James Ritty  
         
John H. Patterson Charles R. Flint George Fairchild John Shaw Billings Herman Hollerith
        
Guglielmo Marconi James Powers Thomas Watson Sr. Henry Ford