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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. 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 ...

  4. 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 ...

  5. Square (financial services) - Wikipedia

    en.wikipedia.org/wiki/Square_(financial_services)

    Square (financial services) Square is a point-of-sale system designed for small and medium-sized businesses. [1] Launched in 2009 by Block, Inc., [2] it allows sellers to accept card payments and manage various business operations. As of 2023, Square leads the U.S. point-of-sale systems market, [3][4][5] serving 4 million clients and processing ...

  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. Verifone - Wikipedia

    en.wikipedia.org/wiki/Verifone

    Verifone, Inc. is an American multinational corporation headquartered in Coral Springs, Florida. Verifone provides technology for electronic payment transactions and value-added services at the point-of-sale. [5][6][7][8][9] Verifone sells merchant-operated, consumer-facing and self-service payment systems to the financial, retail, hospitality ...

  8. Automated teller machine - Wikipedia

    en.wikipedia.org/wiki/Automated_teller_machine

    An automated teller machine (ATM) is an electronic telecommunications device that enables customers of financial institutions to perform financial transactions, such as cash withdrawals, deposits, funds transfers, balance inquiries or account information inquiries, at any time and without the need for direct interaction with bank staff.

  9. Green Dot Corporation - Wikipedia

    en.wikipedia.org/wiki/Green_Dot_Corporation

    Website. greendot.com. The Green Dot Corporation is an American financial technology and bank holding company headquartered in Austin, Texas. [1] It is the world's largest prepaid debit card company [2] by market capitalization. Green Dot is also a payment platform company and is the technology platform used by Apple Cash, [3] Uber, and Intuit.