what are the properties of wifi ?

Answer 1

Aint no properties to it! Its a wireless link between an access point and a PC with a wireless card.

Answer 2

WiFi is somewhat misleading as a description - The term Wireless Fidelity is basically meaningless. WiFi got its name by making a play on words on "HiFi" which was the name given to high fidelity audio systems. It was so well known that it was seen as a catchy name for wireless communication.

Essentially WiFi is the same thing as WLAN - a system for networking computers. This can be achieved within a home or office by use of a wireless router which links all the computers in the same building wirelessly. Alternatively you can subscribe to a public wireless network and access the internet by sitting in a public "hotspot". These are everywhere now in city centers - in Restaurants, Trains, Malls etc.

It all falls under the banner of WiFi.

Other wireless systems like Bluetooth are for local communication between 2 devices - say sending files from your cell phone to a laptop. This is not generally considered as WiFi - although the commincations technology is not much different.

Answer 3

Short for ‘wireless fidelity’. A term for certain types of wireless local area networks (WLAN) that use specifications conforming to IEEE 802.11b. WiFi has gained acceptance in many environments as an alternative to a wired LAN. Many airports, hotels, and other services offer public access to WiFi networks so people can log onto the Internet and receive emails on the move. These locations are known as hotspots

Answer 4

It's a radio signal. Most wifi these days transmits at 2.4 Ghz, with a throughput of 54 Mbps. Maximum range of approx. 1000 ft. Recommended Max: 300 ft. Possible interference: walls, cordless phones, microwave ovens. Wireless card manufacturers include: Belkin, Linksys, Netgear, SMC Networks. Secure networks are typically encrypted with WEP, with 256-bit encryption.