Networking

Means communication at a distance

is Greek for "far"

Refers to information presented in whatever form is agreed upon by the parties creating and using

Are the exchange of data between two devices via some form of transmission medium such as a wire cable

The effectiveness of a data communications system depends on four fundamental characteristics:

Five components of a data communications system

Is the information (data) to be communicated. Popular forms of information include text, numbers, pictures, audio, and video.

Is the device that sends the data message. It can be a computer, workstation, telephone handset, video camera, and so on.

Is the device that receives the message. It can be a computer, workstation, telephone handset, television, and so on.

Is the physical path by which a message travels from sender to receiver.