Computer
Science has discovered many wonderful things and computer is one of them. It is an ultra-modern invention. It has now become an essential part of modern life. Any device that helps people to perform mathematical calculation may be called a “computer”. It works on the basis of commands given by the operator. It can solve a lot of complicated problems within short time.There is a long history about the invention of computer. First of all, Pascal invented the theory of “Digital Calculating System” in 1642. Charles Bavez is called the father of modern computer. In 1833 he invented the structure of computer. Then it had only five parts such as Store, Mill, Control, Input and Output.
Finally, Mr. Haward Akin, an American scientist, invented a machine in 1937 which could do difficult sums. Following this invention, Harvard University and IBM company combindly invented the modern electronic computer in 1944. After this, it has been developed day by day.
There are different kinds of computer. Each special system is called “generation”. At present fourth generation computer has been used. They are UNIVAC-1, ICL-2900, IBM-640 and ADSAC-205 computer. At present only I.C (Integrated Circuit) computers are available in the computer market.
A computer performs three functions. Such as receiving data, processing data and emitting data. The output is printed by printing machine.
There are different kinds of computer. Each special system is called “generation”. At present fourth generation computer has been used. They are UNIVAC-1, ICL-2900, IBM-640 and ADSAC-205 computer. At present only I.C (Integrated Circuit) computers are available in the computer market.
A computer performs three functions. Such as receiving data, processing data and emitting data. The output is printed by printing machine.
The main parts of a computer are Central Processing Unit (CPU), Monitor, Keyboard, mouse, sound box etc.
Computer has brought about a revolutionary change in our life. Nowadays computer is used in educational institutions, companies, business firms, railways, government offices, weather offices, industries, presses, telecommunication sector, medical sector, airlines, agricultural sector, research work, space communication technology etc. So it is seen that it is used almost every sector. It has lessened our work. It can run a business, play various games, compose music etc. So people call it an electronic brain.
Sometimes computer creates problems when its memory unit is attacked with virus. Data and results are stored in the memory unit. So when a computer is damaged anyhow, we may lose necessary information. On the other hand, it is making us lazy day by day. Many young people are being addicted to computer games.
The operator loses the power of his eye-sight. In spite of these bad sides, we are to use computer to cope with the modern world.
No comments:
Post a Comment