Project PDA

Wi-Fi incorporated 802.11b WLAN (wireless local area network) allows you to attach to the internet in any "hot spot." facilitates the Wi-Fi facial appearance be liable to use battery life rapidly. A wireless protocol for device connectivity. Used for LAN connections and wireless Internet. Allows handhelds, desktops and other wireless devices to exchange information at up to 11 mbs at several hundred feet. Also Known As: 8021.11a, 802.11b Wi-Fi (or WiFi, Wifi, wifi), for "Wireless Fidelity", is a set of standards for wireless local area networks (WLAN) based on the IEEE 802.11 specifications. Certified products can use the official Wi-Fi logo, which indicates that the product is interoperable with any other product also showing the logo.

Wi-Fi was intended to be used for wireless LANs, but is now often also used for Internet access. It enables a person with a wireless-enabled computer or personal digital assistant to connect to the Internet by moving within e.g. 15 meters of an access point, called "hotspot".

Wireless data modems are used in the WiFi and WiMax standards, operating at microwave frequencies. WiFi is principally used in laptops for Internet connections (wireless access point) and wireless application protocol (WAP). A person with a Wi-Fi enabled device such as a computer, cell phone or PDA can connect to the Internet when in proximity of an access point. The region covered by one or several access points is called a hotspot. Hotspots can range from a single room to many square miles of overlapping hotspots. Wi-Fi can also be used to create a mesh network. Both architectures are used in community networks, municipal wireless networks like Wireless Philadelphia, and metro-scale networks.

Wi-Fi also allows connectivity in peer-to-peer mode, which enables devices to connect directly with each other. This connectivity mode is useful in consumer electronics and gaming applications.

When the technology was first commercialized there were many problems because consumers could not be sure that products from different vendors would work together. The Wi-Fi Alliance began as a community to solve this issue so as to address the needs of the end user and allow the technology to mature. The Alliance created the branding Wi-Fi CERTIFIED to show consumers that products are interoperable with other products displaying the same branding.