QR codes (short for Quick Response Codes) were invented in 1994, by the DENSO Corporation. I'm sure you've seen lots of them. They are the natural progression of bar codes.
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QR code
The very mention of QR codes will likely incite groans in the least cynical of technophiles. What once was a tangible and exciting example of two-worlds colliding, bringing the physical world into the digital realm with funky barcodes and smartphones, now illustrates what can happen when we’re not really quite sure how to implement a fledgling technology. Football teams with QR codes on their shirts? I rest my case.
Super Cool!!!
We’ve seen a website made of bacon, so I guess it shouldn’t be a surprise that someone has now come up with an edible QR Code.
Super handy to personalize your QR codes.