What is a CPU card?

CPU card is a type of IC card, currently only CPU card can be called smart card IC card in the market, because CPU card is an IC card with a microprocessor CPU, storage unit (including random access memory RAM, program memory ROM (FLASH), user data memory EEPROM), and chip operating system COS in an integrated circuit. A CPU card equipped with COS is equivalent to a microcomputer, which not only has data storage function, but also has functions such as command processing and data security protection. The CPU card can be applied to many fields such as finance, insurance, traffic police, government industry, etc. It has the characteristics of large user space, fast reading speed, support for multiple uses of one card, and has passed the certification of the People's Bank of China and the State Commission of Commerce and Secretaries.