A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices pass data to each other along data connections (network links). Data is transferred in the form of packets.
We were asked to look at non-computer networks
Buses are a form of transport which enables people to travel from place to place without the use of technology.
Campaigns put up throughout the university campus in the form of posters are also ways of communicating, without having to use technology.