A QR code (quick response code) is a type of two dimensional (2D) bar code that is used to provide easy access to online information through the digital camera on a smartphone or tablet. A barcode ...

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 ...

QR codes are designed to convey a relatively large amount of information in a compact form factor, but there is a limit to ...

Using QR codes to link to websites. QR code links have become very popular since the proliferation of smartphones in the 2010s. See QR code. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...

You probably think you need to use your smartphone's camera to scan a QR code, right? That's not the case — it's entirely possible (and super-easy) to scan a "Quick-Response" code that's already saved ...