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2. vCard - Wikipedia

   en.wikipedia.org/wiki/VCard

   vCard, also known as VCF (Virtual Contact File), is a file format standard for electronic business cards. vCards can be attached to e-mail messages, sent via Multimedia Messaging Service (MMS), on the World Wide Web, instant messaging, NFC or through QR code.

3. Business card - Wikipedia

   en.wikipedia.org/wiki/Business_card

   Business cards are cards bearing business information about a company or individual. [ 1 ] [ 2 ] They are shared during formal introductions as a convenience and a memory aid. A business card typically includes the giver's name, company or business affiliation (usually with a logo ) and contact information such as street addresses , telephone ...

4. MeCard (QR code) - Wikipedia

   en.wikipedia.org/wiki/MeCard_(QR_code)

   MeCard is a data file similar to vCard but used by NTT DoCoMo in Japan in QR code format for use with Cellular Phones. It is largely compatible with most QR-readers for smartphones. It is an easy way to share a contact with the most used fields. Usually, devices can recognize it and treat it like a contact ready to import.

5. Digital card - Wikipedia

   en.wikipedia.org/wiki/Digital_card

   A magnetic stripe card is a type of card capable of storing data by storing it on magnetic material attached to a plastic card. A computer device can update the card's content. The magnetic stripe is read by swiping it past a magnetic reading head. Magnetic stripe cards are commonly used in credit cards, identity cards, and

6. Smart card - Wikipedia

   en.wikipedia.org/wiki/Smart_card

   The card security code (CSC) is a 3 or 4 digits number printed on a credit or debit card, used as a security feature for card-not-present (CNP) payment card transactions to reduce the incidence of fraud. The Card Security Code (CSC) is to be given to the merchant by the cardholder to complete a card-not-present transaction.

7. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...