125KHz Smart Key Card
A smart card (Smart Card) is also called an integrated circuit card (Integrated Circuit Card, IC card), and has components such as a microprocessor and a storage unit inside. The chip of the IC card has the ability to write and store data, and the content in the memory of the IC card can be conditionally read by the outside or used for internal information processing and judgment according to the needs. However, before the introduction of IC cards, magnetic cards have been widely used due to the good foundation of technology popularization.
