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In today’s society, the barcode (from United States) and two-dimensional barcode (QR code, short for Quick Response Code, AKA: matrix barcode, from Japan) that can be seen everywhere make our modern life easier. They can hold a large amount of information in a small space, which can be used to track and locate products information. Especially the QR code, it can even be used to call other product information on the Internet.
