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  2. Contactless smart card - Wikipedia

    en.wikipedia.org/wiki/Contactless_smart_card

    A contactless smart card is a card in which the chip communicates with the card reader through an induction technology similar to that of an RFID (at data rates of 106 to 848 kbit/s). These cards require only close proximity to an antenna to complete a transaction.

  3. Proximity card - Wikipedia

    en.wikipedia.org/wiki/Proximity_card

    A proximity card or prox card [1] also known as a key card or keycard is a contactless smart card which can be read without inserting it into a reader device, as required by earlier magnetic stripe cards such as credit cards and contact type smart cards. [2] The proximity cards are part of the contactless card technologies.

  4. Contactless payment - Wikipedia

    en.wikipedia.org/wiki/Contactless_payment

    EMV contactless symbol used on compatible payment terminals. EMV stands for "Europay, Mastercard, and Visa", the three companies that created the standard.Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for ...

  5. MIFARE - Wikipedia

    en.wikipedia.org/wiki/MIFARE

    The contactless IC is based on an 8051 processor with 3DES/AES cryptographic accelerator, making very fast transactions possible. The maximal read/write distance between card and reader is 10 centimetres (3.9 in), but the actual distance depends on the field power generated by the reader and its antenna size.

  6. Calypso (electronic ticketing system) - Wikipedia

    en.wikipedia.org/wiki/Calypso_(electronic...

    The contactless interface (improperly called RFID) ensuring both remote powering and communication between the reader and the card. A Calypso card, whatever its form (card, watch, mobile phone or other NFC object, etc.) has a microprocessor which contains all the information related to its owner rights for the application, and which implements ...

  7. Card reader - Wikipedia

    en.wikipedia.org/wiki/Card_reader

    A card reader is a data input device that reads data from a card-shaped storage medium and provides the data to a computer. Card readers can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals from connections made or interrupted by a card's punched holes or embedded circuitry, or electronic ...

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