Data Communication CSE 225/233
Data Communication CSE 225/233
Data Communication CSE 225/233
CSE 225/233
WEEK-1
OVERVIEW OF DATA
COMMUNICATION
Background
The term telecommunication means communication at a
distance. The word data refers to information presented
in whatever form is agreed upon by the parties creating
and using the data.
Data communications are the exchange of data between
two devices via some form of transmission medium such
as a wire cable.
For data communications to occur, the communicating
devices must be part of a communication system made up
of a combination of hardware (physical equipment) and
software (programs).
2. Sender. The sender is the device that sends the data message.
It can be a computer, workstation, telephone handset, video
camera, and so on.