QR codes are visual patterns that store data smartphones can read. AP Photo/Vincent Yu Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations ...

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, ...

Anatomy of a QR code While it is easy for people to read Arabic numerals, it is hard for a computer. Bar codes encode alphanumeric data as a series of black and white lines of various widths. At the ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. QR codes are visual patterns that store data smartphones can read. AP Photo/Vincent Yu Among the many changes brought about by ...

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.

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.

Created in 1994 by Toyota subsidiary 'Denso Wave' to quickly track vehicles and parts through the company's automotive manufacturing process, QR codes are used more commonly today for logging into ...