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

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

   1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Add or disable 2-step verification for extra security. Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and ...

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

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

   Snapchat introduced the QR codes for profiles in January 2015, based on technology it acquired along with startup Scan.me. They made it easy for people to add each other on Snapchat without typing ...

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

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

   Spotify Codes also could be a constant visual reminder around the web that you could be listening to on-demand music. Similar to how Facebook colonized the web with Like buttons, and Snapchat’s ...

6. 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 ...

7. High Capacity Color Barcode - Wikipedia

   en.wikipedia.org/wiki/High_Capacity_Color_Barcode

   High Capacity Color Barcode (HCCB) is a technology developed by Microsoft for encoding data in a 2D "barcode" using clusters of colored triangles instead of the square pixels conventionally associated with 2D barcodes or QR codes. [1] Data density is increased by using a palette of 4 or 8 colors for the triangles, although HCCB also permits the ...