Any information system depends to some extent on data communications. The flow of data must take place through some process or processes which forward the items of data from place to place within the system. These processes may include postal services, wired connections between parts of a central processor and its peripherals or even delivery services by human beings. It is, however, the exploitation of telecommunications facilities for transmitting data which has given rise to the specialised meaning today of the term ‘data communications’.
Unable to display preview. Download preview PDF.