Session 28 (12 June 2012)

- Network is a system of interconnected computers and peripheral devices.

- Communications is a transfer of information from a sender, across a distance, to a receiver.

- MODEM stands for modulator or demodulator.

- Communication will be possible if got cable, protocol and system application.

- Network communication channel:

• twisted-pair wire
• fibre-optic wire
• satelite