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  2. Kokua Line: Can gift cards or certificates expire? - AOL

    www.aol.com/kokua-line-gift-cards-certificates...

    Question : I thought there was a law that gift cards can't expire. I bought a $25 gift certificate at a popular, long-standing Korean supermarket, paying cash to save them the credit-card ...

  3. 3 Things to Know About Buying Gift Cards at Costco - AOL

    www.aol.com/3-things-know-buying-gift-101521519.html

    Costco's gift cards are one of the store's best lesser-known deals. It pays to take advantage of them for the discounted prices and cash back rewards. But be careful to only buy gift cards you ...

  4. Plan on stuffing stocking with gift cards? Know these ... - AOL

    www.aol.com/plan-stuffing-stocking-gift-cards...

    You'll probably give out and receive plenty gift cards this holiday season. Here's what you need to know before buying or selling unused gift cards.

  5. 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 ...

  6. Universal credit card - Wikipedia

    en.wikipedia.org/wiki/Universal_credit_card

    Data would be stored either in the card, or on a smart phone that communicates with it. [1] It would allow consumer to consolidating their credit, debit, membership, loyalty, gift cards and other forms of magnetic stripe data cards into one card. Certain universal card products also added an extra layer of security to protect their cards ...

  7. 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.

  8. Why do debit and credit cards have expiration dates? - AOL

    www.aol.com/finance/why-debit-credit-cards...

    Most of the time, your card issuer or bank sends you a new card right before your existing card expires. Credit cards and debit cards make in-person purchases much more convenient, and they make ...

  9. Dip reader - Wikipedia

    en.wikipedia.org/wiki/Dip_reader

    A DIP reader (Document Insertion Processor) is an electronic device for reading an electronically encoded card that is inserted and then removed from the device. [1] A typical dip reader is used for reading credit cards where the data are either encoded on a magnetic stripe or an internal computer chip. The magnetic stripe on a card is ...