Scanning a QR code without your phone requires a little help from Google or a webcam.

QR codes are used for everything from opening a restaurant menu to making payments: just point your camera at the QR code, and your phone will automatically open the relevant page. But what ...

You can use WhatsApp on your laptop in two ways. The first is by visiting the official website [web.whatsapp.com]. The second ...

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.

TECH How to scan a QR code with your iPhone or Android phone (no apps needed) QR codes are those pixelated squares you see in restaurants, advertisements, stores, food packaging, business cards ...

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?

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 ...