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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    The message is encoded using a (255,248) Reed Solomon code (shortened to (26,19) code by using "padding") that can correct up to 2 byte-errors. A total of 26 code-words consist of 7 error-correction bytes, and 17 data bytes, in addition to the "Len" (8 bit field), "Enc" (4 bit field), and "End" (4 bit field).

  3. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and how to turn off 2-step verification...

  4. High Capacity Color Barcode - Wikipedia

    en.wikipedia.org/wiki/High_Capacity_Color_Barcode

    High Capacity Color Barcode (HCCB) is a technology developed by Microsoft for encoding data in a 2D "barcode" using clusters of colored triangles instead of the square pixels conventionally associated with 2D barcodes or QR codes.

  5. Wikipedia:WikiProject QRpedia/user guide - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    It is possible to generate your own, downloadable QRpedia code images programmatically, by minting a URL in the form: http://qrpedia.wikimedia.org.uk/qr/php/qr.php?size=800&download=NASA%20QRpedia&e=L&d=http://en.qrwp.org/NASA. Note that you can amend some parameters. |size= is the dimension of the (square) image in pixels.

  6. Comparison of code generation tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_code...

    Output determined by template (any language or even plain text); additional support for emitting header guards, certain licenses, option parsers, and finite state machines in C. GSL Universal Code Generator. C. Active.

    • List of HTTP status codes - Wikipedia
      List of HTTP status codes - Wikipedia
      wikipedia.org
  7. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode ...

  8. 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.

  9. BCH code - Wikipedia

    en.wikipedia.org/wiki/BCH_code

    The generator polynomial of the BCH code is defined as the least common multiple g(x) = lcm(m 1 (x),…,m d − 1 (x)). It can be seen that g ( x ) is a polynomial with coefficients in GF( q ) and divides x n − 1 .

  10. Cyclic redundancy check - Wikipedia

    en.wikipedia.org/wiki/Cyclic_redundancy_check

    Specification of a CRC code requires definition of a so-called generator polynomial. This polynomial becomes the divisor in a polynomial long division , which takes the message as the dividend and in which the quotient is discarded and the remainder becomes the result.

  11. Windows Live Barcode - Wikipedia

    en.wikipedia.org/wiki/Windows_Live_Barcode

    Together with the launch of Desktop QR Code generator, the QR Reader client was released as well for users to view QR codes on their Windows Mobile devices. The Desktop QR Code generator can generate QR Code for any text, vCard, calendar and URL information.

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