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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. [6] [7] [8] 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; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...

3. Square (financial services) - Wikipedia

   en.wikipedia.org/wiki/Square_(financial_services)

   Square charges $99 for Square Stand and $59 for its chip-based Square Reader. [55] The Square app is freely downloadable from the Apple App Store and the Google Play Store. Square charges a fee of 2.6% plus $0.10 on every electronically scanned credit card transaction [56] or 3.50% plus $0.15 per manually-entered transaction. No monthly or set ...

4. QR code payment - Wikipedia

   en.wikipedia.org/wiki/QR_code_payment

   The QR code system was invented in 1994 by Masahiro Hara from the Japanese company Denso Wave. [4]In December 2010, the first documented description of QR code-based payments came from two patents filed by Shaun Cooley and Andrew Charles Payne, based on a prototype system developed for Norton Labs at Symantec called Norton Mobile Pay.

5. Block, Inc. - Wikipedia

   en.wikipedia.org/wiki/Block,_Inc.

   Block, Inc. (formerly Square, Inc. [12]) is an American technology company and a financial services provider for consumers and merchants. [ 13 ] [ 14 ] [ 15 ] Founded in 2009 by Jack Dorsey , it is the U.S. market leader in point-of-sale systems.

6. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   Defunct as of 2019, replaced by standard QR codes. Micro QR code: Micro QR code is a smaller version of the QR code standard for applications where symbol size is limited. Micro PDF417: MicroPDF417 is a restricted size barcode, similar to PDF417, which is used to add additional data to linear barcodes. MMCC

7. Rectangular Micro QR Code - Wikipedia

   en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

   Rectangular Micro QR Code (rMQR Code) version R17x43. Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 [1] by Denso Wave as ISO/IEC 23941. [2] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code ...