![]() ![]() ![]() ![]() Each manufacturer provides a different protocol for communication with the reader. The reader provides a path for your application to send and receive commands from the card. There are many types of readers available, such as serial, PC Card, and standard keyboard models. Unfortunately, the ISO group was unable to provide a standard for communicating with the readers so there is no one-size-fits-all approach to smart card communication. When the smart card and the card reader come into contact, each identifies itself to the other by sending and receiving information. If the messages exchanged do not match, no further processing takes place. So, unlike ordinary bank cards, smart cards can defend themselves against unauthorized users and uses in innovative security measures. Smart cards are portable data cards that must communicate with another device to gain access to a display device or a network. Cards can be plugged into a reader, commonly referred to as a card terminal, or they can operate using radio frequencies (RF). 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). There is a slight difference between the card reader and the terminal. The term is generally used to describe a unit that interfaces with a PC for the majority of its processing requirements. In contrast, a terminal is a self-contained processing device. ![]()
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