-Computer-

Good morning, my friends. Today we’re going to tell you about a computer. Who has a computer at home? Raise your hands. Good !! That’s wonderful !! Well, can we ask you what a computer is used for? You, miss, can you answer my question? Thank you ..

Now, We’ll tell you about a computer. A computer system is made up of a number of inter-connected systems. The heart of the computer is the central processor unit called CPU. Are you following me? Okay, let me continue. The CPU performs the necessary calculation and controls the input and output unit. The CPU is divided into three parts. The memory unit stores the data and programs. The control unit selects data and instructions from the memory unit, interprets them, and control the calculation.. And the third is the arithmetic unit. It performs addition, subtraction, and compares data.

Input/output is the means by which a computer exchanges information with outside world. Devices that provide input or output the computer are called peripheral. On a typical personal computer, peripherals include input devise like the keyboard and mouse, and output devices such as the display and printer. Hard disk drives, floppy disk, and optical disk serve as both input and output devices.

Well, we think that’s all our short about a computer. I hope you’ll understand it very well, if you have any question, you will be happy to answer it during the break time. Thank you … 