Computer

 A computer  is a machine which is designed to help us an all aspects of life. This machine looks very clever because it can work very fast and finish a great amount of work in a relativity short time.

The first computer was made in Bletchlly, Hertfordshire, England. It was called Kolostus. It was the biggest computer ever made by men. The complete set of this machine filled a large room. The function of this machine was to work with numbers. The numbers were used in code during the war between England and Germany in 1942.

Within 40 years its size has become smaller and smaller. A modern computer does not use any electronic  tube but uses microchips. The invention of microchips in 1970 did not only make computer become very small but very cheap as well. A pocket calculator is kind of simple computer.

A computer consist of the hardware is the machine and all its equipment. The software is all the system of the computer. If you attend a computer course you will learn the computer’s software.

The whole work of a computer is done by the keyboard and the input unit, the central processing unit and the output unit which is represented  by the monitor or the screen and the printer. You type some data on the keyboard. Your data will be sent to and kept by the memory. If you need the data to be processed you must push the relevant keyboard and the result or the output can be seen on the monitor. This output can also be printed out.

Now a days we can find computers everywhere. They are loyal servants of men. It is men’s brain which designs their exciting work. Without men computer is just as helpless as the other machine.