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 ...
You’ve probably scanned a QR code this week without thinking twice about it. It might’ve been on a menu, a package, or a flyer. What matters more is what happens after you scan it: you expect it to ...