Smart cards are portable data cards that must communicate with another device to gain access to a display device or a network. In contrast, a ‘terminal’ is a self-contained processing device. The term ‘reader’ is generally used to describe a unit that interfaces with a PC for the majority of its processing requirements. There is a slight difference between the card reader and the terminal. Smart Card Readers are also known as card programmers (because they can write to a card), card terminals, card acceptance device (CAD), or an interface device (IFD).
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