The smart cards and the smart card readers, for example, are complex devices that are used everywhere nowadays, from our credit cards to our smartphones. The term smart card implies a set of technologies, including integrated circuits, microprocessors, memories, antennas, and so on, in the same integrated circuit, to form a microchip that is the heart of a smart card. On the other hand, the smart card readers are complex devices that can communicate with the cards and save data on it or return data to a computer.
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The reader can get more information regarding the smart card world by taking a look at https://en.wikipedia.org/wiki/Smart_card.
The evolution of smart cards are the Radio-Frequency Identification (RFID) devices that can be used to identify people or objects in a contactless form, starting from a few centimeters to several meters. The RFID readers and the corresponding tags (or transponders) are high technology radio devices that can exchange data to...