Answer:
Credit card reader usually use NFC device in order to take a credit card transaction.
Step-by-step explanation:
NFC device is near field transaction device that is used to perform the credit card transaction. It is an electronic circuit integrated with an antenna to send or receive the signal. This device is used at point of sale. where customers use his card for transaction for his purchasing. The device is that is used for transaction is connected through the bank with the help of NFC device to perform secure transaction of money.