What is purpose of QR code?

Related questions

1. How do you scan a QR code with an iPhone app?
2. What is QR scanner app?
3. How do QR codes work on Android?
4. Can you scan a barcode from a phone screen?
5. Can you scan a QR code from a picture?

Tags

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