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 device.

Software built into the cameras on iPhones and Android phones makes quick work of decoding QR codes. How do you do that on a laptop or desktop computer? I have a friend who calls me occasionally to ...

Learn how to scan QR codes directly on your laptop or desktop using browser-based tools like 2scan.net. This easy guide explains how to decode QR codes from images, screenshots, PDFs, and ...

Add Yahoo as a preferred source to see more of our stories on Google. QR codes are visual patterns that store data smartphones can read. AP Photo/Vincent Yu Among the many changes brought about by the ...

Anatomy of a QR code While it is easy for people to read Arabic numerals, it is hard for a computer. Bar codes encode alphanumeric data as a series of black and white lines of various widths. At the ...