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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

   [citation needed] In the NTT contactless IC telephone card project, three parties joined: Tokin-Tamura-Siemens, Hitachi (Philips-contract for technical support), and Denso (Motorola-only production). [citation needed] NTT asked for two versions of chip, i.e. wired-logic chip (like MIFARE Classic) with small memory and big memory capacity ...

5. Calypso (electronic ticketing system) - Wikipedia

   en.wikipedia.org/wiki/Calypso_(electronic...

   Calypso is an international electronic ticketing standard for microprocessor contactless smart cards, originally designed by a group of transit operators from 11 countries including Belgium, Canada, France, Germany, Italy, Latvia, México, Portugal and others. It ensures multi-sources of compatible products, and allows for interoperability ...

6. 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 ...

7. Proximity card - Wikipedia

   en.wikipedia.org/wiki/Proximity_card

   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 are part of the contactless card technologies.