What was QR-code labelling first developed for?
QR code QR code QR code (abbreviated from Quick Response Code) is the trademark for 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. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used. The Quick Response (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
QR code web addresses. Two characters are coded in an 11-bit value by this formula: This has the exception that the last character in an alphanumeric string with an odd length is read as a 6-bit value instead. The following images offer more information about the QR code. Micro QR code is a smaller version of the QR code standard for applications where symbol size is limited. There are four different versions (sizes) of Micro QR codes: the smallest is 11×11 modules; the largest can hold 35 numeric characters. IQR Code is an alternative to existing QR codes developed by Denso Wave.