A massive machine built to Eckert's specifications was built and installed behind glass at IBM's headquarters on Madison Avenue in January 1948.
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Nicholas Metropolis and Richard Feynman organized a punched-card solution, proving its effectiveness for physics research and prompting the use of more powerful computers.
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Eckert arranged with IBM president Thomas J. Watson for a donation of newly developed IBM 601 calculating punch, which could multiply instead of just adding and subtracting.
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