I have a friend who calls me occasionally to help him with various little things having to do with the technology at his house. This week, one of his requests was to learn more about QR codes and how ...

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 ...

Not all smartphones require a third-party app to scan QR codes. Kurt "CyberGuy" Knutsson shows you how to scan codes using ...

For long lists in documents, it is usually too tedious to create QR codes manually and then insert them into the list. You can automate this task in Google Sheets and save a lot of time. To do this, ...

You don’t need an app for this —your phone can do it already. You don’t need an app for this —your phone can do it already. The humble QR (or Quick Response) code has become ubiquitous. Invented back ...