لخّصلي

And the main hardware components required to establish a connection between sender and a receiver are message witch is the most useful assets of a data communication system, sender is to transfer messages from source to destination but someone must be there so they can do the role of a source next the receiver is a destination where the message finally arrived from the source next transmission medium in the entire process of data communication there has to be something which can be line a bridge between sender and receiver,next set of rules is like a protocol and it to govern data communication and it is various sets of rules had been already designed by the designers of the communication systems

And the main hardware components required to establish a connection between sender and a receiver are message witch is the most useful assets of a data communication system, sender is to transfer messages from source to destination but someone must be there so they can do the role of a source next the receiver is a destination where the message finally arrived from the source next transmission medium in the entire process of data communication there has to be something which can be line a bridge between sender and receiver,next set of rules is like a protocol and it to govern data communication and it is various sets of rules had been already designed by the designers of the communication systems