Hi friends! This is about the networks and totally about networking. I am sure that you can learn a lot about the networks from this site. First of all let us start with data communication. It is known that data communication is simple menat to exchange of data between two devices with the help of any kind of transmission medium. the data transfer rate depends on many fundamental characteristics like delivery, accuracy and so on. Delivery is the data must be delivered to the user at the proper time without any problem.