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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. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    Example Name Notes App Clip Code: Apple-proprietary code for launching "App Clips", a type of applet. 5 concentric rings of three colors (light, dark, middle). [46] AR Code: A type of marker used for placing content inside augmented reality applications. Some AR Codes can contain QR codes inside, so that AR content can be linked to. [47] See ...

  4. Linked list - Wikipedia

    en.wikipedia.org/wiki/Linked_list

    A linked list is a sequence of nodes that contain two fields: data (an integer value here as an example) and a link to the next node. The last node is linked to a terminator used to signify the end of the list. In computer science, a linked list is a linear collection of data elements whose order is not given by their physical placement in memory.

  5. What you need to know about QR code scams and how to ... - AOL

    www.aol.com/know-qr-code-scams-stay-204500807.html

    Now QR codes also serve a much different purpose: as a tool for scammers. In December 2023, the Federal Trade Commission warned of a new form of phishing. Appropriately coined quishing, the scam ...

  6. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet.A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1]

  7. Help:Two-factor authentication - Wikipedia

    en.wikipedia.org/wiki/Help:Two-factor_authentication

    Two-factor authentication ( 2FA) is a method of adding additional security to your account. The first "factor" is your usual password that is standard for any account. The second "factor" is a verification code retrieved from an app on a mobile device or computer. 2FA is conceptually similar to a security token device that banks in some ...

  8. Internet of things - Wikipedia

    en.wikipedia.org/wiki/Internet_of_things

    The GS1 digital link standard, [201] first released in August 2018, allows the use QR Codes, GS1 Datamatrix, RFID and NFC to enable various types of business-to-business, as well as business-to-consumers interactions. Parent organization comprises member organizations such as GS1 US: IEEE: Institute of Electrical and Electronics Engineers

  9. 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).

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