Shopping in 2D: QR Barcodes

QR barcode shopping

A QR (Quick Response) barcode is a type of two-dimensional barcode consisting of black square dots arranged on a white square grid. Much like the one-dimensional, or UPC barcode, a QR barcode is also a machine-readable label that stores information about the item to which it is attached. Unlike the standard UPC barcode, however, the QR code allows for bigger data storage and higher-speed readability. It was first designed in 1994 in Japan for the purposes of tracking vehicles during manufacture. In today’s mobile age, QR barcode scanners are made…

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