What happens when you scan a barcode on your phone?
What happens when you scan a barcode on your phone? Scanning these modern-day barcodes with your smartphone lets you quickly open a web page, download an app, send a text message, and much more. Many restaurants and bars are even replacing their menus with QR codes, while some stores allow you to pay with a QR code now, so you don't have to touch anything.
What is the difference between a barcode and a QR code?
The main difference between barcodes and QR codes is one of physical dimensions. Barcodes can be scanned in a line. This means that data is limited to what can be placed in that one stretch of stripes. QR codes, on the other hand, add another dimension from which information can be written and scanned.