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  2. QR code - Wikipedia

    en.m.wikipedia.org/wiki/QR_code

    They can generate and print their own QR codes for others to scan and use by visiting one of several pay or free QR code-generating sites or apps. Google had an API, now deprecated, to generate QR codes, and apps for scanning QR codes can be found on nearly all smartphone devices.

  3. MeCard (QR code) - Wikipedia

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

    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.

  4. Rectangular Micro QR Code - Wikipedia

    en.m.wikipedia.org/wiki/Rectangular_Micro_QR_Code

    Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 by Denso Wave as ISO/IEC 23941. [2] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code.

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

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

    6. Scan the QR code using your authenticator app. 7. Click Continue. 8. Enter the code shown in your authenticator app. 9. Click Done. Sign in with 2-step for authenticator app. 1. Sign in to your AOL account with your password. 2. Enter the verification code shown in your authenticator app. 3. Click Verify.

  6. High Capacity Color Barcode - Wikipedia

    en.m.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.

  7. QR code payment - Wikipedia

    en.m.wikipedia.org/wiki/QR_code_payment

    QR code payment is a contactless payment method where payment is performed by scanning a QR code from a mobile app. [1] This is an alternative to doing electronic funds transfer at point of sale using a payment terminal. [2] This avoids a lot of the infrastructure traditionally associated with electronic payments such as payment cards, payment ...

  8. Barcode - Wikipedia

    en.m.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 ...

  9. QRpedia - Wikipedia

    en.m.wikipedia.org/wiki/QRpedia

    QRpedia is a mobile Web -based system which uses QR codes to deliver Wikipedia articles to users, in their preferred language. [1] [2] [3] A typical use is on museum labels, linking to Wikipedia articles about the exhibited object.

  10. Code generation (compiler) - Wikipedia

    en.m.wikipedia.org/wiki/Code_generation_(compiler)

    Code generation (compiler) In computing, code generation is part of the process chain of a compiler and converts intermediate representation of source code into a form (e.g., machine code) that can be readily executed by the target system. Sophisticated compilers typically perform multiple passes over various intermediate forms.

  11. Istra High Voltage Research Center - Wikipedia

    en.m.wikipedia.org/wiki/Istra_High_Voltage_Research_Center

    In all the facility contains a 3 megawatt capacity transformer cascade, a 9 megawatt Pulsed Voltage Generator (PVG), measuring 39.3 meters high and capable of creating 150-meter artificial lightning, and a 2.25 megawatt constant voltage unit. History