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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. [5] [6] [7] 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; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

3. Scan these new QR-style Spotify Codes to instantly play a song

   techcrunch.com/2017/05/05/spotify-codes

   To scan one, go to the search bar, tap the camera icon then hover the camera over a code on a phone, computer screen or printout. You also can upload a screenshot or photo of a Spotify Code to ...

4. Instagram lets users to share posts/Reels/locations thru QR codes

   techcrunch.com/2022/08/25/instagram-is-now...

   Users can head to any Reel, post or location and hit the three-dot menu to see the option for QR code sharing. Alternatively, on the web, users can add “/qr” to a post’s URL to generate a QR ...

5. Snapchat now lets you make QR Snapcodes that open websites

   techcrunch.com/2017/01/31/website-snapcodes

   To use the feature, open “Settings” and select “Snapcodes,” then “Create Snapcode.”. Enter the URL, add an image from the website or your phone, resize it so it fits inside the ...

6. Wikipedia:WikiProject QRpedia/user guide - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:WikiProject...

   Paste the URL into the box. (The code will automatically generate.) Edit. Click on the QR code image and save it. Import the QR code image into a word processor programme or graphics package. (Optionally) Add text labels. Print. Print the code a minimum of 1 inch (2.5 cm) across, where possible 2 inches (5 cm).

7. QR code payment - Wikipedia

   en.wikipedia.org/wiki/QR_code_payment

   A QR code payment is a mobile 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 ...