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Freifunk (German for: "free radio") is a non-commercial open grassroots initiative to support free computer networks in the German region. Freifunk is part of the international movement for a wireless community network. The initiative counts about 400 local communities [1] with over 41,000 access points. [2]
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 ...
Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
WiFi Master was created by Chen Danian in hopes of 'bridging the digital divide and to help people achieve self-actualization by granting them access to free Internet'.. Chen Danian shared in an interview with Forbes that 'he was born into poverty in rural China, and using the Internet, he realized that it was a tool to change destinies and pursue happiness by exploring opportunities'.
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According to statista.com, in the year 2022, there are approximately 550 million free Wi-Fi hotspots around the world. [14] The U.S. NSA warns against connecting to free public Wi-Fi. [15] Free hotspots operate in two ways: Using an open public network is the easiest way to create a free hotspot. All that is needed is a Wi-Fi router.
v. t. e. Wi-Fi (/ ˈwaɪfaɪ /) [1][a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks, used globally in home ...