How does a card reader work?

Related questions

1. What is a SD card reader used for?
2. What is the purpose of a card reader?
3. How much does it cost for a card machine?
4. How do I fix card reader not detected?
5. How do I transfer photos from card reader to computer?
6. Can photos be recovered after formatting?
7. What is a SD card reader writer?
8. Can you use other banks card readers?
9. Can you recover photos from formatted SD card?
10. Which is the best mobile card reader?

Tags

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2. #sends
3. #reader
4. #static
5. #square
6. #magnetic
7. #magstripe
8. #technology
9. #backside
10. #transmits
11. #swiped
12. #meaning
13. #strip
14. #payment
15. #cards
16. #swipe
17. #every
18. #information
19. #stays
20. #stripe