QR Codes and Barcodes As Fast As Possible

Scannable codes, once the sole province of the grocery store checkout aisle, are now everywhere thanks to the rise of smartphones. How have they changed over the years?

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Licenses for images used in this video:
https://gnu.org/licenses/fdl.html
https://creativecommons.org/licenses/by/3.0/legalcode
https://creativecommons.org/licenses/by-sa/2.5/legalcode

Видео QR Codes and Barcodes As Fast As Possible канала Techquickie