Basic Elements of a Communication System -
The following are the basic requirements for working of a communication system.
- A sender (source) which creates the message to be transmitted.
- A medium that carries the message.
- A receiver (sink) which receives the message.
In data communication four basic terms are frequently used. They are -
Data: A collection of facts in raw forms that become information after processing.
Signals: Electric or electromagnetic encoding of data.
Signaling: Propagation of signals across a communication medium.
Transmission: Communication of data achieved by the processing of signals.
