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Your source for the most up-to-date terms, definitions, and acronyms for and about internet service providers.
check digit
| Last modified: Monday, February 03, 2003
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The last number in a UPC that is used to verify the accuracy of the code. See Webopedia’s definition of UPC for how check digits are calculated.
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 The Uniform Code Council Home Page
Information on the organization, how to acquire UPCs, industry news, and an extensive glossary of e-commerce terms.
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