ID card is a semiconductor card. Semiconductor cards use microelectronics technology to store and process information.

ID cards are classified according to their composition and structure

ID cards can be divided into general memory cards, encrypted memory cards, CPU cards and super ID cards.

Memory card

Its embedded chip is equivalent to ordinary serial EEPROM memory. This kind of card information storage is convenient, simple to use, and IC card is cheap. Magnetic cards can be substituted in many occasions. However, since there is no information security function, it can only be used for applications with low security requirements.

Logic encryption card

the encrypted memory card embedded chip adds control logic outside the storage area. Before accessing the storage area, a password needs to be checked. Only when the password is correct, the access operation can be performed. This information has good confidentiality and is similar to a regular memory card.

CPU cards

the CPU card embedded chip is equivalent to a special type of microcontroller, which has not only a controller, memory, and time control logic, but also an algorithm unit and an operating system. As CPU card has the characteristics of large storage capacity, strong processing capability and secure information storage. It is widely used in the occasions with particularly high information security requirements.

Super ID card

there are MPU and memory on the card, as well as keyboard, LCD display and power supply, and some cards have fingerprint identification devices.