celinae6miebelladel celinae6miebelladel

11-10-2016
Computers and Technology

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How does a barcode work?

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Аноним Аноним

11-10-2016

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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