I have to admit, I’ve never been curious enough to try them: those mobile-phone barcodes that look like square inkblots. They call to you from the corners of newspaper advertisements, packaging, and ...

QR code, short for Quick Response Code, is a kind of matrix barcode that includes information about a product or service. You can find it being used for advertising purposes, where brands put up ...

My QR code reader was in a loop of error messages and had no intention of snapping out of it. “Hold over QR code…” The real-estate section of our Sunday paper ...

QR codes are ubiquitous and incredibly useful for quickly sharing small amounts of information. Although QR (short for Quick Response) codes were originally invented at a Toyota subsidiary company in ...