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  2. PDF417 - Wikipedia

    en.wikipedia.org/wiki/PDF417

    PDF417. PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management. "PDF" stands for Portable Data File. The "417" signifies that each pattern in the code consists of 4 bars and spaces in a pattern that is 17 units (modules) long.

  3. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    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 ...

  4. International Article Number - Wikipedia

    en.wikipedia.org/wiki/International_Article_Number

    By using the barcode center marker, it is possible for a barcode scanner to scan just one half of the barcode at a time. This allows reconstruction of the code by means of a helical scan of the barcode by an angle of approximately 45 degrees. Japanese Article Number. Japanese Article Number (JAN) is a barcode standard compatible with the EAN ...

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

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

    Download an authenticator app from the Google Play Store or App Store. Popular authenticator apps include Google Authenticator, Microsoft Authenticator, LastPass Authenticator, and Authy. Enable 2-step for authenticator app. Important - You may not see this option as it yet available for all accounts. 1. Sign in to your Account Security page. 2.

  6. Code 128 - Wikipedia

    en.wikipedia.org/wiki/Code_128

    A Swiss postal barcode encoding "RI 476 394 652 CH" in Code 128 (B & C) Code 128 is a high-density linear barcode symbology defined in ISO/IEC 15417:2007. [1] It is used for alphanumeric or numeric-only barcodes. It can encode all 128 characters of ASCII and, by use of an extension symbol (FNC4), the Latin-1 characters defined in ISO/IEC 8859-1 ...

  7. AOL Mail

    mail.aol.com

    Absolutely! It's quick and easy to sign up for a free AOL account. With your AOL account you get features like AOL Mail, news, and weather for free!

  8. barcode on boarding pass - Air Travel Forum - Tripadvisor

    www.tripadvisor.com/ShowTopic-g1-i10702-k...

    135 reviews. 82 helpful votes. 2. Re: barcode on boarding pass. 5 years ago. Save. There’s different barcode fonts. The barcodes on boarding passes are 2D whereas the ones in stores for example are 1D. Most likely whatever app you’re using is not set up to read the airline boarding pass.

  9. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    There are a great many QR code generators available as software or as online tools that are either free, or require a paid subscription. The QR code has become one of the most-used types of two-dimensional code. During the month of June 2011, 14 million American mobile users scanned a QR code or a barcode.

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