Today's world is an information-rich world and it has become a
necessity for everyone to know about computers. Purpose of this tutorial
is to introduce you about computer systems and its fundamentals.
Functionalities of a computer
Any digital computer carries out five functions in gross terms:- Takes data as input.
- Stores the data/instructions in its memory and can use them when required.
- Processes the data and converts it into useful information.
- Outputs the information.
- Controls all the above four steps.