QR code: Difference between revisions

Revision as of 11:55, 4 August 2025

Revision as of 13:31, 13 August 2025

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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 efficiently, QR codes use four standardized modes of encoding: [[Number|numeric]], [[Alphanumericals|alphanumeric]], [[Byte pair encoding|byte]] or [[Binary number|binary]], and [[kanji]].<ref name="QRCodefeatures">{{cite web |url=http://www.qrcode.com/en/qrfeature.html |title=QR Code features |publisher=Denso-Wave |access-date=3 October 2011 |archive-url=https://web.archive.org/web/20130129064920/http://www.qrcode.com/en/qrfeature.html |archive-date=2013-01-29}}</ref>

Compared to standard [[Universal Product Code|UPC barcodes]], the QR labeling system was applied beyond the automobile industry because of faster reading of the optical image and greater data-storage capacity in applications such as product tracking, item identification, time tracking, document management, and generaltrackin marketing.<ref name=autogenerated1>{{cite web |url=http://www.nacs.org/LinkClick.aspx?fileticket=D1FpVAvvJuo%3D&tabid=1426&mid=4802 |title=QR Code Essentials |publisher=Denso ADC |year=2011 |access-date=12 March 2013 |url-status=live |archive-url=https://web.archive.org/web/20130512180619/http://www.nacs.org/LinkClick.aspx?fileticket=D1FpVAvvJuo%3d&tabid=1426&mid=4802 |archive-date=12 May 2013}}</ref>

== History ==