Wi-fi
Wi-Fi is a technology that allows electronic devices to connect to a wireless network, typically using the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF radio frequency bands.
History[edit | edit source]
The term Wi-Fi was first used commercially in August 1999. It was developed by a group of major companies, including AT&T, Intel, Cisco, Nokia, and 3Com, who formed the Wireless Ethernet Compatibility Alliance (WECA).
Technology[edit | edit source]
Wi-Fi technology is based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access. Wi-Fi most commonly uses the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF ISM radio bands.
Security[edit | edit source]
Security is a serious concern in connection with Wi-Fi. There are several methods used to protect Wi-Fi networks, the most common of which are WEP and WPA.
Applications[edit | edit source]
Wi-Fi allows local area networks (LANs) to operate without cables and wiring, making it a popular choice for home and business networks. Wi-Fi can also be used to create Wireless Access Points in public places like cafes, hotels, and libraries.
See also[edit | edit source]
References[edit | edit source]
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