Define Data Communication?

What is Data Communication ?

We know communication is the process of sharing information from one to another. For example the conversation between two people. Data Communication is the exchange of  data between between two devices via some form of transmission media such as wire. It is the transmission of digital data and has the objective to send data at highest speed but lowest cost. Electronic communications like emails and instant messages as well as telephone calls are examples of data communications. The effectiveness of a data communication system depends on the following charcteristics:-

• Delivery
• Accuracy
• Timeliness.

Basic Terms Used In Data Communication:-

• Data:- Collection of facts(Raw Forms)
• Signals:- Encoding of data.
• Signaling:- Propagation of signals via communication medium.
• Transmission:- Communication of data by processing of signals.