COMPUTER NETWORKING

Detailed explanation-1: -The Information to be communicated in a data communications system is the message. In data communication, message is transmitted from one point to another via network system which are designed to convey information from the point of origing to the destination.

Detailed explanation-2: -Message: Information (data) to be communicated (e.g., text, numbers, pictures, video) Sender: The device that sends the data message (e.g., computer, video camera) Receiver: The device that receives the message (e.g., a computer, workstation, television)

Detailed explanation-3: -One type of communications device that connects a communications channel to a sending or receiving device such as a computer is a modem.