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Taniya Chandler
Computers & Technology
5 November, 08:53
How does a barcode work?
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Keenan Cantu
5 November, 09:01
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A barcode's bars have
1. different thicknesses, so they each signify 1 or 2 nibbles.
2. the combinations of the thicknesses of those bars exceed the trillions. That's why manufacturers and stores never run out of SKU barcodes.
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