
Students Guide to Information
Technology
advantages include the fact that the rate at which data is transmitted
can be varied in different parts of the network, which means that:
# the bandwidth can be varied to take account of the volume of traffic
and the type of communication link
# devices with different baud rates can inter-communicate via the
network.
The Open Systems Interconnection (OSI) reference
model
The OSI model defines a set of networking and telecommuni-
cations standards. By complying with these standards, different
hardware and software manufacturers ensure that their products are
compatible. (It is no good attempting to lin ...