You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account ...

Press the Esc button to bring up the menu, and select the Settings option/cog wheel from the menu on the right. Next, click ...

Mexico City has launched a test-and-trace approach to containing the coronavirus, after a rise in hospitalizations that has raised fears of a new economic lockdown in one of the world's largest urban ...