What is data communication and how ?

What is data communication and how we use data communication in easy and better way to achieve yours goals.

Communication means a “to share”. Data communication is actually sharing of information, knowledge and important data.

For example: we want to send a file to our Boss. We prepare it and deliver it to Boss by hand or by post or by a peon, this is called data communication. In similar way we can send it through computer (via email) considering that we are working on modern technology.

So data communication is a sharing, distribution of information where some person will send (sender entity), someone will receive (receiver entity) and there will be the medium (wire, air, peon) who transfer this information.

Internet is a largest and easy way of data communication
Telecommunication(mobile phones, wireless) is another resource that make data communication easy.