QR code is the trademark for a type of matrix barcode first designed in 1994 for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached.
This means that any customer can walk into your business with his or her smartphone, and scan a QR code which you have generated. An Android user can use something like QR Code Reader, and an iPhone user can download the Quick Scan app. Both are free of charge
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