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  2. Debit card - Wikipedia

    en.wikipedia.org/wiki/Debit_card

    A debit card, also known as a check card or bank card, is a payment card that can be used in place of cash to make purchases. The card usually consists of the bank's name, a card number, the cardholder's name, and an expiration date, on either the front or the back. Many new cards now have a chip on them, which allows people to use their card ...

  3. Check card - Wikipedia

    en.wikipedia.org/wiki/Check_card

    Check card. The term check card can refer to: A debit card. In Ireland and the United Kingdom, similar cards known as cheque guarantee cards were issued by banks to their customers. Categories: Disambiguation pages. Payment systems.

  4. Checkers - Wikipedia

    en.wikipedia.org/wiki/Checkers

    Checkers[note 1] (American English), also known as draughts (/ drɑːfts, dræfts /; British English), is a group of strategy board games for two players which involve forward movements of uniform game pieces and mandatory captures by jumping over opponent pieces. Checkers is developed from alquerque. [1]

  5. How long can a credit card charge be pending? - AOL

    www.aol.com/finance/long-credit-card-charge...

    It is also customary in the hotel industry to place a hold on your credit card when you check in for your stay. That way, the hotel will be covered in case you cause any damage to the room, and ...

  6. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [1]

  7. ColorChecker - Wikipedia

    en.wikipedia.org/wiki/ColorChecker

    ColorChecker. The ColorChecker Color Rendition Chart (often referred to by its original name, the Macbeth ColorChecker[1] or simply Macbeth chart[2]) is a color calibration target consisting of a cardboard-framed arrangement of 24 squares of painted samples. The ColorChecker was introduced in a 1976 paper by McCamy, Marcus, and Davidson in the ...

  8. English draughts - Wikipedia

    en.wikipedia.org/wiki/English_draughts

    Synonyms. American checkers. straight checkers. checkers (or chequers) draughts (or drafts) English draughts (British English) or checkers (American English), also called straight checkers or simply draughts, [note 1] is a form of the strategy board game checkers (or draughts). It is played on an 8×8 checkerboard with 12 pieces per side.

  9. Payment card - Wikipedia

    en.wikipedia.org/wiki/Payment_card

    With a debit card (also known as a bank card, check card or plastic card) when a cardholder makes a purchase, funds are withdrawn directly either from the cardholder's bank account, or from the remaining balance on the card, instead of the holder repaying the money at a later date. In some cases, the "cards" are designed exclusively for use on ...