Is it a printing error? A pixilated maze? One of those puzzles where you have to cross your eyes to see the hidden image? Two-dimensional matrix bar codes are expanding into the mainstream. You can ...

QR codes are used just about everywhere now, for checking into venues, ordering food, or just plain old advertising. But what about data storage? It’s hardly efficient, but if you want to store your ...

Staff member Ewen Smart (left) gets his QR code scanned during a demonstration on how to do the self-test kit at a new walk-through Covid test centre at The Engine Shed, Stirling, which opens to the ...

Yesterday Microsoft made the not-so-surprising announcement that it would no longer be supporting its Microsoft Tag system. Rest easy, all you Microsoft Tag fanatics out there— the technology will ...