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Write down the basic elements of a data communication system.

Elements of Data Communication System
The basic elements of data communication system are as follows:

1. Sender/Transmitter
A device used for sending data or messages is called sender. i.e. Computer, telephone/Fax machine etc.

2. Message
The message is the data or information that is to be transmitted i.e. text, numbers, pictures, sounds and videos etc.

3. Medium or Communication Channel
The path through which data is transmitted from one place to another is called medium. i.e. telephone line , fiber optics etc.

4. Receiver
A device used for receiving messages is called Receiver. i.e. computer, telephone/fax machine , printer etc.

5. Encoder and Decoder
The encoder and decoder are used in communication systems to convert signals from one form to another.