Are QR codes back?

Related questions

1. What is a dynamic QR code?
2. How were QR codes created?
3. What QR code contains?
4. When did QR codes start?
5. What is use of QR Code?
6. Are there different types of QR codes?
7. Can QR codes store images?
8. What's the difference between a QR code and a barcode?
9. Where is my QR code on my iPhone?
10. What information is stored in QR Code?

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21. #according