Each computer has a network
card installed with appropriate network software, and is
linked to another computer using a network cable.
Cable can be twisted-pair, coaxial,
or optical fibre.
Wireless
(Microwave,
Infra-red,
Radio)
Data is transmitted using radio,
infra-red or microwaves.
A wireless hub receives and
transmits data to each computer. Each computer needs a special wireless
network card.
No cabling involved.
Satellite
There are now hundreds of satellites orbiting the
Earth which can be used to 'bounce' signals off.
Data Transmission speeds may
vary.
If the speed is slow...
a user will find it takes a long time for a response
from a computer to be made
it will take a long time to download
data
Exercise
: Data Transmission
A computer on a network needs special installed as well as a . This card is either linked by to another computer or it receives and transmits signals
(radio, infra-red or microwave) to a .
