QR code QR code, the common QR code is QR Code, the full name of QR is Quick Response, which is a coding method. It can store more information and represent more data types than traditional barcodes.
bestfreeqrcodegenerator.com
bestfreeqrcodegenerator.com
Two-dimensional barcode/two-dimensional barcode is a black and white graphic that records data symbol information and is distributed on a plane (in a two-dimensional direction) according to a certain rule with a specific geometric figure; it is cleverly used to form the internal structure of the computer in code compilation. The concept of "0" and "1" bit streams based on logic uses several geometric shapes corresponding to binary to represent text numerical information, and realizes automatic processing of information through automatic reading by graphic input devices or photoelectric scanning devices: it has barcodes Some common features of the technology: the crowded coding system has its own specific character set; each character occupies a certain width; it has certain verification functions, etc. At the same time, it also has the function of automatically processing and identifying different rows of information, and graphics processing rotation change points.
