What is QR code?
QR code - a matrix two-dimensional barcode, consists of black and white modules, which stores data. Created by Japanese corporation Denso Wave in 1994 for the automotive industry to track vehicles during manufacturing. Today, it's widely used for various purposes, such as advertising, e-commerce, event management or contactless payment.
The acronym QR stands for "Quick Response". The idea behind this code was to allow its decoding at high speed. It can store up to several hundred times more information than traditional barcodes.
In addition to storing text and numerical data like URLs, phone numbers or email addresses, QR codes can also contain binary data such as images or audio files. These codes are readable by any smartphone camera equipped with a QR code reader app.