Whereas a barcode is a machine-readable optical image that contains information specific to the labeled item, the QR code contains the data for a locator, an identifier, and web tracking. To store data …

A QR code (quick-response code) is a type of two-dimensional matrix barcode. Japanese company Denso Wave invented it in 1994 for labelling automobile parts. [1][2]

A QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. [1] This is an alternative to doing electronic funds transfer at point of sale using a …

QR codes can easily be generated to link directly to any Uniform Resource Identifier (URI), but the QRpedia system adds further functionality. It is owned and operated by a subsidiary of Wikimedia UK …

Look up qr in Wiktionary, the free dictionary.

Dec 23, 2025 · QR Code, a type of bar code that consists of a printed square pattern of small black and white squares that encode data which can be scanned into a computer system.

Un code QR, en anglais QR code (en forme longue quick response code, litt. « code à réponse rapide »), est un type de code-barres à deux dimensions constitué de modules-carrés noirs disposés dans …

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A QR code, short for quick-response code, is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of the Japanese company Denso Wave for l...