composition on wonders of modern science
Computer Computer is the most wonderful contribution of science. It is a great success of modern technology. But it has no ability to do anything by itself. It works on the basis of commands given by the operator. It can solve many complex problems within a short time.
Computer is invented by the hard work for many cientists. Charles Bavez is called the father of modern computer. He invented the structure of computer at first in 1833. His invented computer had five parts. These were store, mill, control, input and output. By following the structure of computer of Bavez, Harverd University and I. B. M. company combindly invented the modern electric computer in 1944. After this, it has been rapidly modified and many other computers have been invented.
A computer performs three functions. It receives data, processes it and at last emits it. At first the details of work is put into the input of the computer. It is called programme. The computer does not work in our language. So the programme is to put in its own language. This programme is typed and produced in the tele-type unit of the information input.
The output prints the results with the help of the printing. machine. Its signal goes to the memory and the control unit reads them to the arithmatic unit. After finishing its tasks, it sends them to the result output. Thus result is emited by computer. Computer is very useful to us. It is used in various purposes. These are given below: 1. Computer has made a great change in education. The sutdents of developed countries use computer to prepare the study materials.
The result of various examinations prepared accurately by computer within a short time. Besides printing thousands of books within a short time computer contributes a lot in education. 2. At present computer is used of diagnose disease. A new. process of operation is invented by computer as an alternative of surgery. Beside this, computer is used to grind stones in normal pathological test. 3. Now-a-days, computer is used to prepare document and budget and to store information.
The price of currency and price of any share can be known instantly by computer. 4. At present, computer is used to run mills, factories an industries in developed countires. Cars, trains and planes are also run by the computer. Besides the uncounted uses of computer it has some demerits. It weakens the eye-sight of the operator. The computer is a blessing of modern science. We cannot go a single moment without it. It lessens our works and makes our lives easy and simple. But it has not been fully introduced in Bangladesh. So we should use it all over Bangladesh.