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  2. 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 ...

  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. Near-field communication - Wikipedia

    en.wikipedia.org/wiki/Near-field_communication

    Like other proximity card technologies, NFC is based on inductive coupling between two electromagnetic coils present on a NFC-enabled device such as a smartphone. NFC communicating in one or both directions uses a frequency of 13.56 MHz in the globally available unlicensed radio frequency ISM band , compliant with the ISO/IEC 18000-3 air ...

  5. Smartwatch - Wikipedia

    en.wikipedia.org/wiki/Smartwatch

    The first digital watch was the Pulsar, introduced by the Hamilton Watch Company in 1972. The "Pulsar" became a brand name, and would later be acquired by Seiko in 1978. In 1982, a Pulsar watch (NL C01) was released which could store 24 digits, likely making it the first watch with user-programmable memory, or the first "memorybank" watch.

  6. Apple Pay - Wikipedia

    en.wikipedia.org/wiki/Apple_Pay

    Apple Pay is a mobile payment service by Apple Inc. that allows users to make payments in person, in iOS apps, and on the web.Supported on iPhone, Apple Watch, iPad, Mac, and Vision Pro, Apple Pay digitizes and can replace a credit or debit card chip and PIN transaction at a contactless-capable point-of-sale terminal.

  7. Radio-frequency identification - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_identification

    Some bike lockers are operated with RFID cards assigned to individual users. A prepaid card is required to open or enter a facility or locker and is used to track and charge based on how long the bike is parked. [citation needed] The Zipcar car-sharing service uses RFID cards for locking and unlocking cars and for member identification. [68]

  8. SmartLink (smart card) - Wikipedia

    en.wikipedia.org/wiki/SmartLink_(smart_card)

    Pre-loaded SmartLink cards with 10 trips are available at all stations for $31.00 (10 trips at $2.60 each, plus a $5.00 card fee). However, MetroCard Vending Machines (MVMs) at all PATH stations are able to refill the SmartLink cards to a monetary amount equal to 1, 2, 4, 10, 20 and 40 trips as well as the daily or 30 day unlimited passes.

  9. Proximity sensor - Wikipedia

    en.wikipedia.org/wiki/Proximity_sensor

    An infrared proximity sensor Optical proximity sensor in a 2016 Samsung smartphone.A proximity sensor is a standard feature of most smartphones, disabling the touchscreen when positioned near an ear during phone calls; more recent (late 2019-early 2020) smartphones with OLED displays may have the sensor mounted under the display.

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