Data - Data is information that has been translated into a form that is efficient for movement or processing
Input − In this step, the input data is prepared in some convenient form for processing. The form will depend on the processing machine. For example, when electronic computers are used, the input data can be recorded on any one of the several types of input medium, such as magnetic disks, tapes, and so on.
Processing − In this step, the input data is changed to produce data in a more useful form.