An abbreviation for “Quick Response Code” the QR Code refers to a label that can be read by a machine. This type of matrix barcode shows information that is encoded into a graphical black-and-white pattern.
The QR Code was first designed in 1994, specifically for the Japanese automotive industry. It is an optical label that contains information regarding the item to which it is attached. It often contains data for a locator, identifier, or tracker that points to either a website or application. This matrix barcode had gone on to become popular outside the automotive industry, with even smartphones being able to scan them for purchases or rewards.