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Verifier

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Verifier  (VERIFIER)


The machines used in these operations are the punch1, verifier2, sorter3 and tabulator4. Other machines used in mechanical tabulation are the reproducer5, which copies information from one punched card to another, the interpreter6, which converts the information contained on the cards as punched holes into print on the card, and the collator7, which is used for the comparison or merging of different packs of cards. The summary punch8 is used for preparing cards, sometimes called summary cards9, containing intermediate totals, which can then be used in later tabulations.
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