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 ...

Add Yahoo as a preferred source to see more of our stories on Google. QR codes are visual patterns that store data smartphones can read. AP Photo/Vincent Yu Among the many changes brought about by the ...

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...