How much more “data” does a QR code have, compared to a regular “bar code/UPC code”?

Question

I kind of understand how a UPC code works, but how is a QR code capable of “storing more data”?

In: Other

Answer 1

Thanks for all of the in-depth explanations. I have a better understanding of it now, thanks to y’all. It still blows my mind, lol.