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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    Accessible QR is a type of QR code that combines a standard QR code with a dot-dash pattern positioned around one corner of the code to provide product information for people who are blind and partially sighted. The codes, announce product categories and product details such as instructions, ingredients, safety warnings, and recycling information.

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

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

    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.

  4. Peer instruction - Wikipedia

    en.wikipedia.org/wiki/Peer_instruction

    Peer instruction. Peer instruction is an evidence-based, interactive teaching method popularized by Harvard Professor Eric Mazur in the early 1990s. [1] [2] Originally used in many schools, including introductory undergraduate physics classes at Harvard University, peer instruction is used in various disciplines and institutions around the globe.

  5. 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 ...

  6. How to activate eSIM on iPhone | TechCrunch

    techcrunch.com/2024/01/24/how-to-set-up-esim-on...

    The precise instructions vary from region to region. For this guide, we’ve focused primarily on the U.S. market. ... QR code support. If your carrier has issued you a QR code, you can simply ...

  7. How to scan with an iPhone - Engadget

    www.engadget.com/how-to-scan-with-iphone...

    The default way to scan a document with an iPhone lives within iOS’ native Notes app. Open it and open a new note. Tap the camera icon on the bottom menu bar, tap Scan Documents and then hold ...

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