What is data communication? Describe basic elements of data
communications

Subject Introduction to Computer System
NU Year Set: 5.(a) Marks: 1+4=5 Year: 2014

Data communications (DC) is the process of using computing and communication technologies to transfer data from one place to another, and vice versa. It enables the movement of electronic or digital data between two or more nodes, regardless of geographical location, technological medium or data contents.

Data communication is a process of transferring data electronically from one place to another. Data can be transferred by using different medium. 

Basic Elements of data-communications:

 

·         Message

·         Sender

·         Receiver

·         Medium/ communication channel

·         Encoder and decoder

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