Download - ppt on WIFI
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INTRODUCTION
ORIGIN
WORKING (VIDEO)
ADVANTAGES
DIS-ADVANTAGES
LIMITIATIONS
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A ROUTER IS A NETWORKING DEVICE THAT FORWARDS DATA PACKETS BETWEEEN COMPUTER NETWORKS.
A ROUTER IS CONNECTED TO TWO OR MORE DATA LINES FROM ONE SINGLE NETWORK.
WHEN A DATA PACKETS COME IN ON ONE OF THE LINES, ROUTER READS THE INFORMATION IN THE PACKET TO DETERMINE ITS ULTIMATE DESTINATION
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WI-FI i.e. wireless fidelity is wireless technology that uses radio frequency to transmit data
through the air
Wi-Fi (wireless technology) is an alternative to Technology , which is commonly used ,for
connecting devices in wireless using radio waves
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Back in 1991 wi-fi was invented by NCR
Coporation in Netherlands.
The first wireless products were brought on
the market under the name WaveLan with
speeds of 1mbs/2Mbs
Vic Hayes who is the inventor of wifi has been
named “father of wi-fi”
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WI-FI TECHNOLOGY USES RADIO SINGNALS TO TRANSMIT DATA JUST LIKE OUR OLD RADIO SETS, TVS
AND WALKIE-TALKIES.
THE WIRELESS ADAPTER OF THE DEVICE TRANSLATES DIGITAL DATA TO RADIO SIGNALS
SIGINAL ARE THEN TRANSMITTED OVER THE ANTENNA
ROUTER RECIEVES THE SIGNAL AND DECODES THEM.
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No Wires-A truly wireless networking solution.
No Waiting- Fast, easy, deployments.
No Worries-A wireless networking system that is secure, easy to manage, and built to grow with you.
Ease of installation – Quick, easy setup.
Fast data transfer rates.
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SPEED - Slower than cable
Range –Affected by various medium.
Travels best through open space.
Reduced by walls ,glass ,water , etc.
Security-Greater exposure to risks.
Unauthorized access.
Compromising data.
Denial of service.
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Limited range
Data security risks: a huge challenge for Wi-Fi networks.
Interference from other devices: such as telephones, microwave ovens.
High power consumption: making battery life and heat a concern.
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