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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    They can generate and print their own QR codes for others to scan and use by visiting one of several pay or free QR code-generating sites or apps. Google had an API, now deprecated, to generate QR codes, and apps for scanning QR codes can be found on nearly all smartphone devices.

  3. Wi-Fi hotspot - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi_hotspot

    Free hotspots Public Wi-Fi hotspot in Zürich. According to statista.com, in the year 2022, there are approximately 550 million free Wi-Fi hotspots around the world. The U.S. NSA warns against connecting to free public Wi-Fi. Free hotspots operate in two ways: Using an open public network is the easiest way to create a free hotspot.

  4. Wi-Fi Alliance - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi_Alliance

    Wi-Fi Passpoint, alternatively known as Hotspot 2.0, is a solution for enabling inter-carrier roaming. It utilizes IEEE 802.11u. Wi-Fi Easy Connect. Wi-Fi Easy Connect is a protocol that would enable easily establishing connections via QR code. Wi-Fi Protected Setup

  5. Wi-Fi - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi

    A QR code to automate a Wi-Fi connection using WIFI:S:Wikipedia;T:WPA;P:Password1!;; A flaw in a feature added to Wi-Fi in 2007, called Wi-Fi Protected Setup (WPS), let WPA and WPA2 security be bypassed.

  6. MeCard (QR code) - Wikipedia

    en.wikipedia.org/wiki/MeCard_(QR_code)

    MeCard (QR code) MeCard is a data file similar to vCard but used by NTT DoCoMo in Japan in QR code format for use with Cellular Phones. It is largely compatible with most QR-readers for smartphones. It is an easy way to share a contact with the most used fields.

  7. Wi-Fi Direct - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi_Direct

    Wi-Fi Direct (formerly Wi-Fi Peer-to-Peer) is a Wi-Fi standard for peer-to-peer wireless connections [1] that allows two devices to establish a direct Wi-Fi connection without an intermediary wireless access point, router, or Internet connection. Wi-Fi Direct is single-hop communication, rather than multi-hop communication like wireless ad hoc ...

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