Source : Free On-Line Dictionary of Computing

Harvard Mark II Machine
     
         A {relay}-based computer designed and
        built by {Howard Aiken}, with support from {IBM}, for the
        United States Navy's Naval Proving Ground, between 1942 -
        1947.  The Harvard Mark II was the second in a series of four
        {electro-mechanical} computers that were forerunners of the
        {ENIAC}.
       
        {Harvard machines
       
     (http://hoc.co.umist.ac.uk/storylines/compdev/electromechanical/harvardmarkmachines.html)}.
       
        (2003-09-13)