Chip on the card, information exchanged is through physical contact of the card and the card reader.
Chip inside the cards, information exchanged is based on principles of radio frequency by flashing the card in front of the card reader.
Loyalty cards make the customer feel important. More and more, companies realize that their most precious asset is their existing customer base.
The proximity cards are contactless cards and they have an antenna embedded in the card. However, the proximity cards are read-only cards and the information on these cards cannot be manipulated. The proximity cards also use the radio frequency identification (RFID) technology. The applications of these cards include access control, identification and security.