IC card:
The system uses CPU intelligent card. The capacity of the card is large (2KB, achieve multipurpose card), highly secure (internal CPU chips, can operate complicated cryptanalysis), flexible and so on. It can effectively collect and transmit data to make the management work simple. The card can be read and written for many times to avoid the troublesome brought by frequently replacement. At the same time, the data format of the card is compatible with that in the bank.