Here are some common problems have risen with the many uses of smart card readers. Depending on the purpose of readers, they can be designed only as a relay of information to its main host (the computer) or to decode information and act on that information independent of a host. Smart card readers mainly act as a medium between a computer or a terminal to the smart card. Whenever the credit card is swiped, the reader will be able to access data from the smart card. An example of a contact smart card is a credit card that has the smart chip implanted in its plastic.
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