On the afternoon of the 31st, Lee Han-nyung, Director of the Financial Settlement Bureau at the Bank of Korea, stated at the seminar "Directions for the Development of Digital Finance and Future Tasks ...
Concept design uses QR codes to give time and place information to smartphones and other devices with artificial eyes. The QR code constantly changes to reflect the new time. Freelance writer Amanda C ...
Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.
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