At last, you can link your iPhone with a Windows PC. We explain what you can do once synced, the limitations that exist, and how to set it up.

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?

Opera has announced new features for its Android and desktop browser, which now lets you sync data across devices by scanning a QR code. Opera for Android also adds a new in-browser chat and more.

QR codes can carry text like URLs, vCard contact information, URIs to send metadata to apps, or a link to compose a text or email message.

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.

Steam update suggests you can soon log in via QR code It looks like the Steam Deck is already influencing its desktop counterpart, with a new QR-driven login system ...

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