1. Brush the magnetic card POS machine. The magnetic card is low in cost, easy to use, and easy to manage, but the security risks of the magnetic card are increasingly prominent.
2. Brush the IC card POS machine. Prolonged contact may cause poor contact of the IC card and make it difficult to read data.
3. Brush the non-contact IC card POS machine. The difference between an IC card and a magnetic card is that the data storage medium is different, the storage capacity of the IC card is large, the security and confidentiality are high, the CPU card has data processing capability and has a long service life.