telegraph in early 1800s.
communication system are concerned with the transfer of data and information from one location to another
the data communication is like in which all working of networks through which we communicate each others.
A terrestrial system for satellite communication is one that facilitates. This includes the facilitation of audio, data, and any other communication.
communication system are concerned with the transfer of data and information from one location to another
By ensuring that data does not change during transmission
Effectiveness of data communication system depends upon three fundamental characteristics 1. Delivery 2. Accuracy 3.Timeliness. 1.Delivery : System must deliver data to correct destination. 2.Accuracy : System must deliver data accurately. 3.Timeliness: System must deliver data in correctly manner.
Simplex communication Unidirectional transmission.
it is a network data communication system where each of the device connected with it wait for their time to communicate. when they have the token, they got to communicate or sent transmission.
The scope of work and the educational requirements are the difference between data communication and data communication information.
lan
data communication link
-a system where by data are exchanged between two parties.