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2. 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 ...

3. Barcode reader - Wikipedia

   en.wikipedia.org/wiki/Barcode_reader

   Barcode reader. A stationary barcode scanner for a conveyor line. A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.

4. 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 ...

5. How Snapchat Made QR Codes Cool Again | TechCrunch

   techcrunch.com/2015/05/04/snapcode

   QR codes have been a laughing-stock for years now. The gangly square bar codes were slapped on posters and magazine pages, and heralded as an easy way to open URLs or bonus content.

6. 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 ...

7. Google Chrome gets its own QR code & barcode scanner

   techcrunch.com/2017/02/02/google-chrome-gets-its...

   The iPhone’s QR code reader is tucked away inside the Wallet app, for example, where it’s used to scan coupons, boarding passes, tickets and the like. This presumes these are main ways that QR ...