QR Code (also known as QR code) stands for Quick response code, or can be called Matrix-barcode. This is a form of information that is encoded for display so that it can be read by a machine. Historically, QR Code first appeared in 1994, created by Denso Wave (a subsidiary of Toyota). QR Code consists of black dots and pattern squares on a white background. A QR code can contain information about a web address (URL), time, location of an event, contact information, email address, SMS message, te
