Computer

An electronic machine used to accept a user request in a form of data, process those data and displays us an information as a result which should be meaningful.

Basic tasks of computer

• accepting a request.
• processing those request
• displaying a result

Block Diagram of a computer.

On the basis of the basic task of the computer we can draw the following block diagram of computer.

Data/Input

• Collection of alphabets, numbers and some special symbols which need to be processed in an electronic circuit.

Process

• Reordering or re-arranging the data to form an information

Information

• A result of data processing having special meaning.