Definition: Wi-Fi => WIreless FIdelity network
=wireless lan/ethernet
=wireless version of wired networks
Types:
Speed: 54.0 MBPS/11.0 MBPS/54.0MBPS
Frequency: not sure/2.4Ghz/2.4Ghz
Order Of Introduction: a=>b=>g
Compatibility: g is backward compatible with b..... therefore b/g networks can coexist ... a is completely different
Requirements: as in wired networks the 2 clients require lan card ... in wireless network 2 clients require a wireless network card ... or atleast inbuilt wireless capabilities as in the case of CENTRINO notebooks which are inbuilt with Wi-Fi b networks
with these 2 basically i can set up a direct connection for sharing of resources BUT NOT SHARING OF A NET CONNECTION !!!
this is called as an AD-HOC mode of wireless connection
Requirement For Sharin NET Connection:
1) a wireless access point (AP)/router ... in addition to the 2 wireless cards on each pc ( no. =2)
2) one of the cards ( the one on ur host pc with net connection) to have an INBUILT ACCESS POINT
check my guide for sharing a net connection here
*www.thinkdigit.com/forum/viewtopic.php?t=11401&highlight=ravens+guide
Difference Between WI-FI and wired lan/ethernet:
1) Wi-FI is free of wires/wireless .... wired has .. well WIRE troubles
2) wi-fi offers max 54 MBPS speed ... wireless offers 10/100MBPS to 1 GIGABIT with "GIGABIT" LAN as seen on the newer MOBO's !
3) Wi-Fi offers WEP Security ... wired lan does not
4) wired lan cannot be tapped into that easily .. u need a physical source
wireless networks can be found with wi-fi enabled devices .... and can be accessed if WEP key not available pretty easily ...
even with WEP ... wifi is not very secure ... ( but here we are talkin abt US government secure)
basic security is good enuff
Uses
With the kind of connection that u require ie. AD-hoc / Infrastructure
1) sharing files/folders/resources between 2 computers (AD-HOC/Infrastructure)
2) Playing Multiplayer games (AD-HOC/Infrastructure)
3) Sharing Printers (AD-hoc/Infrastructure)
4) Sharing New Connection (Infrastructure REQUIRED !!!! or AD-HOC with a Proxy Setup!)
Sites You Can Visit:
*computer.howstuffworks.com/wireless-network.htm
*infoscouts.com/computers/wifi.htm
*www.bitpipe.com/data/rlist?t=1020279364_3396753&src=google
*www.google.com/search?hl=en&ie=UTF-8&q=what+is+wi-fi&meta=
for more on bluetooth check my post here
*www.thinkdigit.com/forum/viewtopic.php?t=12130&highlight=bluetooth
o what the hell ill paste it here
bluetooth is a wireless technology used to connect diff deviced together
u can use it as lan .. but its NOT a replacement for LAN
tho it can be used for the purpose ... but its not a replacement for sure
its too slow
goto
www.howstuffworks.com and search for bluetooth for more information
Kidan