A QR code (Quick Response code) is a two-dimensional barcode that stores data in a matrix of black and white squares. It can be scanned by smartphone cameras to instantly access URLs, text, contact information, and other data types. QR codes were invented in 1994 by Denso Wave and have become a ubiquitous tool for bridging physical and digital experiences.
The restaurant placed a QR code on each table so diners could scan it to view the menu on their phones.
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