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2. Payment terminal - Wikipedia

   en.wikipedia.org/wiki/Payment_terminal

   PAX Technology S90 credit card terminal with a Visa card inserted.. A payment terminal, also known as a point of sale (POS) terminal, credit card machine, card reader, PIN pad, EFTPOS terminal (or by the older term as PDQ terminal which stands for "Process Data Quickly" [1]), is a device which interfaces with payment cards to make electronic funds transfers.

3. Chip Authentication Program - Wikipedia

   en.wikipedia.org/wiki/Chip_Authentication_Program

   In all three modes, the CAP reader asks the EMV card to output a data packet that confirms the cancellation of a fictitious EMV payment transaction, which involves the details entered by the user. This confirmation message contains a message authentication code (typically CBC-MAC / Triple DES ) that is generated with the help of a card-specific ...

4. 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 ...

5. Smart card application protocol data unit - Wikipedia

   en.wikipedia.org/wiki/Smart_card_application...

   A command APDU is sent by the reader to the card – it contains a mandatory 4-byte header (CLA, INS, P1, P2) [2] and from 0 to 65 535 bytes of data. A response APDU is sent by the card to the reader – it contains from 0 to 65 536 bytes of data, and 2 mandatory status bytes (SW1, SW2).

6. How to make payments with your phone - AOL

   www.aol.com/finance/payments-phone-164336000.html

   Open the Wallet app on your iPhone, tap the plus sign and follow the instructions to add a new card to Wallet. ... Then hold your phone over the contactless card reader, and the payment will ...

7. CCID (protocol) - Wikipedia

   en.wikipedia.org/wiki/CCID_(protocol)

   Chip card interface devices come in a variety of forms. The smallest CCID form is a standard USB dongle and may contain a SIM card or Secure Digital card inside the USB dongle. [ citation needed ] Another popular interface is a USB smart card reader keyboard , which in addition to being a standard USB keyboard, has an built-in slot for ...