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2. Barcode Scanner (application) - Wikipedia

   en.wikipedia.org/wiki/Barcode_Scanner_(application)

   Barcode Scanner scanning a QR code. The application Barcode Scanner is an Android app, from the open-source project ZXing (short for Zebra Crossing ), that allows an Android device with imaging hardware (a built-in camera) to scan barcodes or 2D barcodes and retrieve the data encoded. [2] Information encoded often includes web addresses ...

3. 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. 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; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

4. NZ COVID Tracer - Wikipedia

   en.wikipedia.org/wiki/NZ_COVID_Tracer

   On 23 March, Prime Minister Jacinda Ardern announced that people would not need to use their COVID Tracer apps to scan QR codes at businesses and venues from 11:59 pm on 4 April. On 1 April, 1 News reported a decline in NZ COVID Tracer app usage, citing data from the Ministry of Health. Between 1 December 2020 and 1 April 2022, COVID Tracer app ...

5. 10 Receipt Scanner Apps That Reward You for Everyday Shopping

   www.aol.com/finance/best-receipt-scanner-apps...

   1. Fetch Rewards: Best for Free Gift Cards. Fetch Rewards lets you earn a minimum of 25 reward points by scanning digital and print receipts — 35 points minimum for qualifying purchases. It also ...

6. 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 ...

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

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

   4. Select Authenticator app for your 2-step verification method.-To see this option, you'll need to have at least 2 recovery methods on your account . 5. Click Continue. 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.