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2. 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 ...

3. Smart card - Wikipedia

   en.wikipedia.org/wiki/Smart_card

   A smart card ( SC ), chip card, or integrated circuit card ( ICC or IC card ), is a card used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip. [1] Many smart cards include a pattern of metal contacts to electrically connect to the internal chip.

4. Punched card input/output - Wikipedia

   en.wikipedia.org/wiki/Punched_card_input/output

   Punched card input/output. An IBM 80-column punched card of the type most widely used in the 20th century. IBM 1442 card reader/punch for 80 column cards. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards.

5. Wiegand interface - Wikipedia

   en.wikipedia.org/wiki/Wiegand_interface

   The Wiegand interface is a de facto wiring standard which arose from the popularity of Wiegand effect card readers in the 1980s. It is commonly used to connect a card swipe mechanism to the rest of an access control system. The sensor in such a system is often a "Wiegand wire", based on the Wiegand effect, discovered by John R. Wiegand.

6. How to make payments with your phone - AOL

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

   If you are shopping in a physical store, open the Wallet app, select the card you’d like to use and hold your unlocked phone over the Tap to Pay card reader. The app will let you know once the ...

7. Proximity card - Wikipedia

   en.wikipedia.org/wiki/Proximity_card

   The proximity card coil of an electronic fare collection system. 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 ...