Being able to convey and exchange information is an essential and fundamental skill that allows one to speak formally and informally for different purposes, to listen to others and to respond to their contributions or concerns.
Communication is the process of establishing connection or link between two points for information exchange or practically the process of conveying and exchanging information at a distance.
Whether human beings or two systems, communication involves the transfer of information from a sender to receiver and therefore it allows one to explain ideas, to report them and to use questioning techniques.