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  2. Payment card number - Wikipedia

    en.wikipedia.org/wiki/Payment_card_number

    A payment card number, primary account number (PAN), or simply a card number, is the card identifier found on payment cards, such as credit cards and debit cards, as well as stored-value cards, gift cards and other similar cards. In some situations the card number is referred to as a bank card number. The card number is primarily a card ...

  3. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/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]

  4. ISO/IEC 7812 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_7812

    A prominent user is the European Health Insurance Card system, which appends 5 digits of insurer identification (essentially making a 10-digit IIN-alike system.) 89 EE(E) Telecommunications use, administered by the ITU-T. SIM card ICCIDs are allocated from this range. EE(E) refers to the E.164 country code (with some exceptions.) 9 CCC

  5. List of national identity card policies by country - Wikipedia

    en.wikipedia.org/wiki/List_of_national_identity...

    All citizens over the age of 16 need to apply for a National Identity Card (NIC). Each NIC has a unique 10 digit number, in the format 000000000A (where 0 is a digit and A is a letter). The first two digits of the number are your year of birth (e.g., 88xxxxxxxx for someone born in 1988). The final letter is generally a V or X. An NIC number is ...

  6. Punched card - Wikipedia

    en.wikipedia.org/wiki/Punched_card

    For example, the combination "12-1" is the letter "A" in an alphabetic column, a plus signed digit "1" in a signed numeric column, or an unsigned digit "1" in a column where the "12" has some other use. The introduction of EBCDIC in 1964 defined columns with as

  7. Digital card - Wikipedia

    en.wikipedia.org/wiki/Digital_card

    A non-physical digital card, unlike a magnetic stripe card, can emulate (imitate) any kind of card. [4] [1] A smartphone or smartwatch can store content from the card issuer; discount offers and news updates can be transmitted wirelessly, via Internet. These virtual cards are used in very high volumes by the mass transit sector, replacing paper ...

  8. ISO/IEC 7810 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_7810

    An "informative" (i.e. non-mandatory) annex [7] describes how an ID-000 sized card may be included in an ID-1 size card for processing (e.g. in an ID-1 reader), but with "relief areas around the perimeter of the ID-000 size card to allow it to be removed from the ID-1 size card without punching tools". An ID-1 size card containing an ID-000 ...

  9. Check digit - Wikipedia

    en.wikipedia.org/wiki/Check_digit

    The digit the farthest to the right (which is multiplied by 1) is the check digit, chosen to make the sum correct. It may need to have the value 10, which is represented as the letter X. For example, take the ISBN 0-201-53082-1: The sum of products is 0×10 + 2×9 + 0×8 + 1×7 + 5×6 + 3×5 + 0×4 + 8×3 + 2×2 + 1×1 = 99 ≡ 0 (mod 11). So ...