How do barcodes work?

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Barcode readers or barcode scaners are part of inventory managment system from 1970, but how exactly the work? So how exactly the barcode scanner works? Well, as you can see, most products today are being labeled with bar code images representing significant details including what the item is, which category it falls and how much it costs. Of course, humans can’t read and interpret bar code images. Have you known one that can? We use a certain device that can identify bar codes and that’s how  barcode scanners came into existence. You may have seen how these devices really work when shopping in certain department stores. The cashier will scan yourRead More