celinae6miebelladel
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  • 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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