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  2. Contactless payment - Wikipedia

    en.wikipedia.org/wiki/Contactless_payment

    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 making secure payments. The embedded integrated circuit chip and antenna enable consumers to wave their card ...

  3. Contactless smart card - Wikipedia

    en.wikipedia.org/wiki/Contactless_smart_card

    Contactless smart card. A contactless smart card is a contactless credential whose dimensions are credit card size. Its embedded integrated circuits can store (and sometimes process) data and communicate with a terminal via NFC. Commonplace uses include transit tickets, bank cards and passports. There are two broad categories of contactless ...

  4. Mastercard - Wikipedia

    en.wikipedia.org/wiki/Mastercard

    Mastercard. Logo used since 2019, with the current symbol since 2016 without the "Mastercard" wordmark. Mastercard Inc. (stylized as MasterCard from 1979 to 2016, mastercard from 2016 to 2019) is an American multinational payment card services corporation headquartered in Purchase, New York. [3] It offers a range of payment transaction ...

  5. What Is a Credit Card Finance Charge? - AOL

    www.aol.com/finance/credit-card-finance-charge...

    A credit card’s finance charge is the interest fee charged on revolving credit accounts. It is directly linked to a card’s annual percentage rate and is calculated based on the cardholder’s ...

  6. Near-field communication - Wikipedia

    en.wikipedia.org/wiki/Near-field_communication

    This chip is commonly found in smartphones and other NFC devices. Near-field communication ( NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 centimetres (1.6 in) or less. [1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of ...

  7. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    SIM card. A SIM ( Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops ).

  8. Telephone card - Wikipedia

    en.wikipedia.org/wiki/Telephone_card

    Telephone card. A telephone card, calling card or phone card for short, is a credit card -size plastic or paper card used to pay for telephone services (often international or long-distance calling). It is not necessary to have the physical card except with a stored-value system; knowledge of the access telephone number to dial and the PIN is ...

  9. Smart card - Wikipedia

    en.wikipedia.org/wiki/Smart_card

    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.

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