HI! I'm Elliot Alexander, a London-based Computer Scientist with a background in software engineering. I've worked across the security and high-performance computing space, and am experienced in all ...

QR codes are everywhere these days and are very easy to take for granted — so much so that we never even stop to question what "QR" even means.

On iPhone, open the saved QR code in Photos and tap and hold it. On Android, open it in Google Photos and tap Search to scan ...

QR codes are pixelated black and white squares that perform magic when we point the cameras on our phones at them—but what’s going on that makes this little spell possible? QR codes are akin to the ...