The components of communication system are:

Source : This device generates the data to be transmitted.

For example : Phones and Personal computers.

Transmitter : A transmitter transforms and encodes the Information such a way to produce electromagnetic signals that can be transmitted across of transmission system.

Transmission System : This can be a single transmission line or a complex network connecting source and destination.

Receiver : The receiver accepts the signal from the transmission system and converts it into a form that can be handled by destination device .

For example : A modem will accept an analog signal coming from a network or transmission line and convert it into a digital bit stream .

Destination : Takes the incoming data from the receiver.