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check digit

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check digit

In computing, a digit attached to an important code number as a validation check.



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? Mentioned in ? References in periodicals archive
 
We had surprisingly few problems with typing errors, as indicated by the internal Check Digit Verification of CAS Registry Numbers (17).
However, most modern implementations of barcodes require complicated check digit calculations for error correction that cannot be performed by the fonts themselves.
Of the three drives, two hold actual data, while a third contains check digits.
 
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