Similar to the shape of the IC card and magnetic data storage media, it is the difference between card. Magnetic card to store information through the magnetic field changes the magnetic stripe card, IC card electric rub Programmable Read Only Memory IC chip (EEPROM) embedded in the card to store data. Therefore, compared with the magnetic card, IC card has the following advantages: 
 ① storage capacity. Magnetic storage capacity of about 200 characters; IC card storage capacity depending on the model, hundreds of small characters, a big one million characters. 
 ② security. Information on the IC card can freely read, modify, erase, but they require a password. 
 (3) CPU card with the data processing capability. Data exchange with the reader, data encryption, decryption, to ensure the exchange of data is accurate and reliable; and magnetic card does not have this feature. 
 ④ long service life. 

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