CPU card: Also known as smart cards, the integrated circuit in the card with microprocessor CPU, storage unit (including random memory RAM, program memory ROM (Flash), user data memory EEPROM), and chip operating system COS. CPU card equipped with COS is equivalent to a miniature computer, which not only has data storage functions, but also has functions such as command processing and data security protection.
The CPU card is suitable for many fields such as finance, insurance, traffic police, and government industry. It has the characteristics.