What is the purpose of a QR code?

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Tags

1. #process
2. #response
3. #works
4. #known
5. #through
6. #tagging
7. #opens
8. #which
9. #owner
10. #phone
11. #mobile
12. #conjunction
13. #barcode
14. #reader
15. #smartphone
16. #provide
17. #quick
18. #points
19. #access
20. #camera
21. #information