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  2. Square (financial services) - Wikipedia

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

    In June 2015, Apple announced Square would release a reader device capable of accepting Apple Pay and other contactless payments. [35] In the same year, Square launched a reader for Android and iOS that accepts contactless and chip card payments. [36] Additionally, the firm launched Square Payroll for small business owners to process payroll. [37]

  3. 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.

  4. 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.

  5. Top Credit Card Payment Apps for Entrepreneurs - AOL

    www.aol.com/top-credit-card-payment-apps...

    PayPal Zettle: This app allows you to accept contactless payments on Android and iOS devices without a card reader. It offers a low flat rate of 2.29% plus 9 cents per transaction, and you can buy ...

  6. Smart card - Wikipedia

    en.wikipedia.org/wiki/Smart_card

    Dual-interface cards implement contactless and contact interfaces on a single chip with some shared storage and processing. An example is Porto's multi-application transport card, called Andante, which uses a chip with both contact and contactless (ISO/IEC 14443 Type B) interfaces. Numerous payment cards worldwide are based on hybrid card ...

  7. 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 ...

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