They are the plastic cards which has embedded computer chip stored inside it. This chip can be used for storing and processing sensitive data. The chip can be designed using the non programmable array of chips or even via microprocessor with an internal memory storage.
Different kinds of smart cards include storage/memory card, intelligent card and the hybrid card. It works including server, operating system, microprocessor, digital signature and transport key. Initially, you have to insert the smart card into the place and then one have to perform the ATR function. Then, have to arrange the data array, after reading of the data from the smart card. Then, it will be sent to the LCD. These smart cards can be used in public market, telephones recharge, e-commerce, electronic wallets, store values, cable TV, internet banking, transportation, health care, medical applications and in different firms.