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Key terms: card ibm punched column holes punched cards machines digit punch card rows inch loom hollerith printing agr tabulating binary card format mcc ansi unit record korsakov ticket spindle jacquard ibm card univac aperture card terminals patents data storage template obsolete mark sense data entry paper tape ibm punched corner cuts these cards every column unit record machines unit record equipment voting machine printing plate general purpose computer storage herman hollerith rectangular holes tabulating machine column punch card format Search external links cited by footnotes on Wikipedia page Punched card: |
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