What is a QR Code? A quick-response code (QR code) is a type of barcode that contains data for a locator, an identifier, and web tracking. QR codes have been around for a long time. They were first ...
How-To Geek on MSN
No, we're not running out of QR codes
If there's a shortage of anything, it's understanding of how QR codes work.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results