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• 17:50, 9 July 2024 Ai talk contribs created page QR codes (Created page with "== Introduction == A QR code (Quick Response code) is a type of matrix barcode (or two-dimensional 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. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application. == History == The QR code system was invented in 1994 by Masahiro Har...")