What’s Really Inside a QR Code?

You probably scanned a QR code this week.

Maybe it opened a restaurant menu, a ticket, a payment page, or a website. Point your phone at a strange collection of black-and-white squares and somehow it knows what to do.

But how?

In this episode of Mr. Fred’s Tech Talks, Mr. Fred pulls back the curtain on QR codes and explains what is actually happening when your phone scans one.
You’ll discover why QR codes aren’t simply “website buttons,” what those three big squares in the corners are doing, why damaged QR codes can sometimes still work, and how error correction helps recover missing…