QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

QR codes are surrounded by blank space, the quiet zone, to help the computer determine where the QR code begins and ends. QR codes can include an optional logo in the middle.

Bar codes store information along one axis, horizontally. QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data. That extra amount of ...

QR codes can house a whole lot of data, from the URL of a webpage or service, to where to directly download an app. Here's how to scan them.

Quick Response (QR) codes need to avoid being passed off as a fad, and be more strategically used to engage customers as newer technologies threaten to erode its relevance.

You probably already know how to scan a QR code with your phone. It's simple enough: just open the camera app, point your phone at the code, and tap the link. What if you're on your computer, though?

How to scan QR codes (and bar codes) with Chrome First, make sure you have the latest version of Chrome. Then, you can access the scanner in two ways: 1. 3D Touch the Chrome app icon and choose ...

Adding a QR code to your printed photo can embed data like URL's, geographic locations, dates, and names. We'll show you how.

QR codes are easy to use if you know how to access the information they contain and have an internet connection. Here are a few ways to access QR code information using your iPhone with iOS 16.