Write a composition on "Computer" in 250 words.

Computer

Introduction: It is the age of science. Science is the driving force of modern civilization (সভ্যতা). By the blessings of science we can talk over the phone or internet and send messages across the seas. Due to science man has landed on the moon and mars. He has invented computer. It is the latest miracle (অলৌকিক ঘটনা) of science and technology.

How invented: Charles Babez, a British professor of Mathematics, first thought about a formula. The formula was supposed to help human brain. He could not invent computer. He initiated (চালু করেন) the research leading to the invention of computer. But the credit for the invention of modern computer goes to an American scientist. He is Mr Howard Akin. In 1933, he invented such a machine that could do difficult sums. After seven years electric computer was used in Harvard in 1944.

Functions of a computer: Generally a computer performs three functions. It receives data. It processes data by various computations. And it emits data..

Major components of a computer: Computer consists of five major components. They are input unit, output unit, memory unit, control unit and arithmetic unit.

Machine language: Every computer has its own machine language. It understands only this language. So, instruction (নির্দেশনা) to computer must be given in this language.

Its uses: Computer serves us in many ways. It is used in translation. It translates (অনুবাদ করে) poems or any part of literature. It is used in big agricultural farms in America. Trains and planes are run by computer. The results of examination can accurately be given by computer within a short time. Time is not far off when every brain work will be done by computer.

Computer in Bangladesh: Today computer is very much popular in Bangladesh. It has already occupied an important place in the mind of the people. The young generation (প্রজন্ম) are very conscious of computer education. They are receiving training on computing with great interest.

Conclusion: Computer is the greatest contribution (অবদান) of science. And we should buy computers, use computer and try to make computers for the prosperity (সমৃদ্ধি) of the country.