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Network (Network devices (NIC (It prepares the data for sending, it sends…
Network
NIC
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It controls the flow of data from the computer to the transmission media(metal wire, optical fibre etc)
Routers
Router can be used to join several wires or wireless networks together and are a combination of hardware.
They are hardware devices that read the address information to determine the final destination of the packet
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Modems
modems have been largely replaced by routers for providing access to the internet as the routers are much faster.
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Extra
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video conferencing
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disadvatages
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the initial cost of the equipment, as specialist video-conferencing equipment is expensive.
policing the internet
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YES
Films, Radio programmes are policed so the internet should be regulated as well
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LAN VS WLAN
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WLAN
a wireless local area network makes use of infra-red or microwaves asa a carrier for the data rather than wires
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INTRANET VS INTERNET
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INTRANET
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Intranets are ideal in schools because they use prevent students from accessing unwanted information
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