Norris Johnson Books

Network+ Study Guide & Practice Exams: Exam N10-003
Network+ Study Guide & Practice Exams: Exam N10-003

By Robert Shimonski, Norris Johnson, James Stanger, Laura Hunter

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Robert J. Shimonski, Michael Cross, Laura Hunter. Includes Index.

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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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