Quick Response Code (QR Code) is the trademark for a type of matrix bar-code (2 -dimensional barcode) first designed 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.
A QR code uses 4 standardized encoding modes (numeric, alphanumeric, byte/binary) to efficiently store data.
The QR code system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing.
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