Andrew Robert Chapman Books

COBOL
COBOL

By Andrew Robert Chapman

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2019
2019

By Andrew Chapman

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JCL-Step by Step
JCL-Step by Step

By Andrew Chapman

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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