Contact POS machine refers to the magnetic card or IC card needs to be inserted into the POS machine card slot to use, non-contact POS machine refers to consumption does not require IC card inserted into the POS machine card slot can be read data for payment, they are to the performance of the card to categorize.
Brush contact IC card POS machine, long time contact, easy to cause IC card contact bad, not easy to read data. Therefore, in the original contact IC card on the basis of upgrading, the emergence of contactless IC card, which at the same time with contact and contactless communication interface.
IC cards are similar in appearance to magnetic cards, which store information through the magnetic field of the magnetic stripe on the card, while IC cards store data and information through the embedded electrically erasable programmable read-only memory integrated circuit chip (EEPROM).
The IC card is widely used in the fields of identity authentication, banking, telecommunication, public **** transportation, car park management, etc. For example, the second-generation ID card, the bank's e-purse, the telecommunication's cell phone SIM card, the public **** transportation's bus card, the subway card, the parking card used for parking fee collection, etc. are all non-contact type.
Expanded Information:
Advantages of contactless IC card:
1, large storage capacity. Magnetic card storage capacity of about 200 characters; IC card storage capacity depending on the model, small hundreds of characters, large millions of characters.
2, good security and confidentiality, not easy to be copied, the information on the IC card can be read at will, modify, erase, but all need a password.
3, CPU card with data processing capabilities. When exchanging data with the card reader, the data can be encrypted and decrypted to ensure that the exchange of data is accurate and reliable; magnetic cards do not have this function.
4, long service life, can be recharged repeatedly.
5, IC card has anti-magnetic, anti-static, anti-mechanical damage and anti-chemical damage and other capabilities, information retention years, read and write times in tens of thousands of times or more.
6, IC card can be widely used in finance, telecommunications, transportation, trade, social security, taxation, medical care, insurance, etc., covering almost all the public **** business field.
Baidu Encyclopedia - IC Card
Baidu Encyclopedia - Magnetic Card
Baidu Encyclopedia - POS