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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. 52 Incredibly Cool Things That Are Free Online That Everyone ...

   www.aol.com/52-helpful-things-free-everyone...

   Image credits: agentp2319 #5. I built [qrfa.st](https://qrfa.st) which offers free qr codes. I built it because I heard horror stories about people making qr codes, only to find out later they had ...

4. vCard - Wikipedia

   en.wikipedia.org/wiki/VCard

   Standard. RFC 6350. vCard, also known as VCF (Virtual Contact File), is a file format standard for electronic business cards. vCards can be attached to e-mail messages, sent via Multimedia Messaging Service (MMS), on the World Wide Web, instant messaging, NFC or through QR code. They can contain name and address information, phone numbers, e ...

5. URL shortening - Wikipedia

   en.wikipedia.org/wiki/URL_shortening

   This is an accepted version of this page This is the latest accepted revision, reviewed on 29 August 2024. Web technique For information about short URLs for pages on Wikipedia, see Wikipedia:URLShortener. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find ...

6. Rectangular Micro QR Code - Wikipedia

   en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

   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. But rMQR Code is more suitable for the rectangular ...

7. Katy Perry’s QR code tattoo at the VMAs explained - AOL

   www.aol.com/katy-perry-qr-code-tattoo-152257620.html

   “Katy Perry’s tramp stamp QR code to her presave link is incredible,” a second marveled, with a third agreeing, adding that she is a “genius.” “Makin’ that mark of the beast stylish ...