While this book is not intended to be a definitive text on the
networking aspects of communications systems, this section has been included to allow the
main focus of the book the design and performance of the modem,
to be appreciated within the wider context of its place in the communications network. A
very good text on networking has been written by Halsall
(1992).
The network is the all-embracing term for the collection of
building blocks that make up a modern sophisticated communications system. It in general
comprises physical interconnections via cable, fibre, radio
or infrared, modems which process the information for
reliable transmission through a given type of interconnection, and switches
(routers, exchanges), which are used to route the information between source and
destination.
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