IBM Punched Card Machine Load Computer

This slide chart was produced by IBM and is approximately 7.5 inches by 3 inches. It was used to calculate how long it would take to process a certain number of punched cards through different punched card machines [punches, verifiers, sorters, collators and accounting machines].

punched card load calculator 01

punched card load calculator 02

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Filed under Calculators, IT

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