5. Explain the fundamental units of a computer with a block diagram? (Or)
Explain the basic computer organization in detail? (JAN 2009\MAY 2009)
A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately.
Input Unit:
Computers need to receive data and instruction in order to solve any problem. Therefore we need to input the data and instructions into the computers. The input unit consists of one or more input devices. Keyboard is the one of the most commonly used input device. Other commonly used input devices are the mouse, floppy disk drive, magnetic tape, etc. All the input devices perform the following functions.
· Accept the data and instructions from the outside world.
· Convert it to a form that the computer can understand.
· Supply the converted data to the computer system for further processing.
Storage Unit:
Block Diagram of Computer
The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed. It preserves the intermediate and final results before these are sent to the output devices. It also saves the data for the later use.
