Any computer system can perform five basic functions.
A computer can accept input data for the purpose of processing. This is called inputting.
Inputted data can be saved so that it is available for initial or additional processing as and when required. this is called storing.
Performing basic arithmetic or logical operations on data in order to get the input data converted into required useful information is known as processing.
It is the process of producing useful information or results for the person or device, such as a printed report or visual system. the output can also be the input for a control system.