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  2. Keycard lock - Wikipedia

    en.wikipedia.org/wiki/Keycard_lock

    A keycard lock is a lock operated by a keycard, a flat, rectangular plastic card. The card typically, but not always, has identical dimensions to that of a credit card, that is ID-1 format. The card stores a physical or digital pattern that the door mechanism accepts before disengaging the lock. There are several common types of keycards in use ...

  3. Digital card - Wikipedia

    en.wikipedia.org/wiki/Digital_card

    The term digital card[1] can refer to a physical item, such as a memory card on a camera, [2][3] or, increasingly since 2017, to the digital content hosted as a virtual card or cloud card, as a digital virtual representation of a physical card. They share a common purpose: identity management, credit card, debit card or driver's license.

  4. Radio-frequency identification - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_identification

    Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver, and a transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits ...

  5. Wiegand interface - Wikipedia

    en.wikipedia.org/wiki/Wiegand_interface

    The Wiegand interface is a de facto wiring standard which arose from the popularity of Wiegand effect card readers in the 1980s. It is commonly used to connect a card swipe mechanism to the rest of an access control system. The sensor in such a system is often a "Wiegand wire", based on the Wiegand effect, discovered by John R. Wiegand.

  6. 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.

  7. Magnetic secure transmission - Wikipedia

    en.wikipedia.org/wiki/Magnetic_secure_transmission

    MST is designed to transmit from within 3 in (76 mm) of the magnetic card reader. [3] Outside of physical transmission, there are no changes to the magnetic stripe card system (i.e., reception, processing, information content, and cryptographic protocols). However, the information being transmitted being dynamic may allow tokenization.

  8. Access badge - Wikipedia

    en.wikipedia.org/wiki/Access_badge

    An access badge is a credential used to gain entry to an area having automated access control entry points. Entry points may be doors, turnstiles, parking gates or other barriers. Access badges use various technologies to identify the holder of the badge to an access control system. The most common technologies are magnetic stripe, proximity ...

  9. Computer programming in the punched card era - Wikipedia

    en.wikipedia.org/wiki/Computer_programming_in...

    A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching holes in the card ...