ISBN and UPC Identification Numbers Flashcard

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What does ISBN stand for?

Back

International Standard Book Number.

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What is the purpose of an ISBN?

Back

To uniquely identify books and other publications.

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What is the structure of an ISBN-10?

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An ISBN-10 consists of 10 digits, which may include the letter 'X' as a check digit.

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How is the check digit of an ISBN-10 calculated?

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The check digit is calculated using a weighted sum of the first 9 digits, where each digit is multiplied by its position (1 to 10), and the result is taken modulo 11.

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What does ISBN-13 represent?

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A 13-digit format of the International Standard Book Number introduced to expand the numbering system.

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How do you convert an ISBN-10 to ISBN-13?

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To convert, prefix the ISBN-10 with '978', recalculate the check digit, and append it.

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What does UPC stand for?

Back

Universal Product Code.

Front

What is the purpose of a UPC?

Back

To uniquely identify products in retail and inventory systems.

Front

What is the structure of a UPC?

Back

A UPC consists of 12 digits, typically represented in a barcode format.

Front

How is the check digit of a UPC calculated?

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The check digit is calculated using a weighted sum of the first 11 digits, where odd-positioned digits are multiplied by 3 and even-positioned digits by 1, then the total is taken modulo 10.