What is data communication? What are the main components of data communication?

Q. What is data communication? What are the main components of data communication?

Answer: -

Data communication:-
Data communication refers to the exchange of data between two or more networked or connected devices. These devices must be capable of sending and receiving data over a communication medium.

Components of data communication:-

• Sender: A sender is a computer or any such device which is capable of sending data over a network. It can be a computer, mobile phone, smartwatch, walkie-talkie, video recording device, etc.
• Receiver: A receiver is a computer or any such device which is capable of receiving data from the network. It can be any computer, printer, laptop, mobile phone, television, etc. In computer communication, the sender and receiver are known as nodes in a network.
• Message: It is the data or information that needs to be exchanged between the sender and the receiver. Messages can be in the form of text, number, image, audio, video, multimedia, etc.
• Communication media: It is the path through which the message travels between source and destination. It is also called medium or link which is either wired or wireless. For example, a television cable, telephone cable, Ethernet cable, satellite link, microwaves, etc.
• Protocols: It is a set of rules that need to be followed by the communicating parties in order to have successful and reliable data communication.