QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons. QR codes are found everywhere from ...

What is a QR Code? A quick-response code (QR code) is a type of barcode that contains data for a locator, an identifier, and web tracking. QR codes have been around for a long time. They were first ...