WiFi

Wireless Internet Access

Wi Fi i.e Wireless Fidelity is a general reference a wireless local area network or any type of 802.11 networks.Wi Fi term was found by Wi Fi Alliance, an organization responsible for testing and certifying products for interoperability and thus labeling them as Wi-Fi certified.802.11 is a part of 802.11 family which are wireless network standards.

There are two predominant standards in practical use: 502.11b & 502.11g. Under ideal conditions 502.11g has a transfer rate of 54Mbaud. The standard 2dBi arials can be replaced with a 7dBi substitute, which will increase range and penetration of solid construction walls.

The box that splits a single inbound connection to WiFi, and generally 4 cable connections, is called a router. Not all routers have WiFi functionality. As a security feature, the router can be programmed to accept connections from specific computersonly, or more correctly the network card(s) in the computer. Each network card is characterised by its unique MAC address - twelve hexadecimals normally written in pairs: 00-0E-9B-AF-C6-D1

The technology is now sufficiently inexpensive that it can be used in the domestic situation.

Hot Spots

Areas such as hotels, fast food restaurants, airports which promote certain business in an area are generally the Wi Fi Hot Spots, which provide public access to wireless network. As, a Wifi device has the ability to connect to the internet any where in the world, WAP(wireless access point) is a device which helps in establishing connection between the wired and wireless devices so if a place has one or more WAPs, is known to be a Hot Spot.These hot spots sometimes offer free services or charge on a daily/hourly basis.Wireless LAN should possess WEP/WPA for security purpose.



Retrieved from "http://aboutus.com/index.php?title=WiFi&oldid=12998941"