How to read a barcode


06 Nov

When a barcode is scanned, the string of vertical lines are interpreted by the computer and then output as text.

The point-of-sale system can recognize that string of text and will know to bring up certain details — like the name and price of that item — as a result.

That relationship between the barcode and that item had to be established beforehand. The barcodes were generated either by the business itself, or in concert with an organization known as GS1, which licenses barcodes to companies all around the world.


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