Scan a QR code with your webcam Sometimes you have a QR code on a sheet of paper but your phone isn't handy. Your laptop has a camera, though, and you can use it instead.

1] Use the Camera App to Scan QR Codes Usually, you can take pictures and record videos with your Windows computer using the Windows Camera app. It can, however, also read QR codes.

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.

To avoid this threat, you should use trusted apps provided by the device manufacturer to scan QR codes and avoid downloading custom QR code apps.

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other ...

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 ...