Computer- Composition-JSC-SSC-HSC [Gazi Online School
Computer
Introduction: Computer is the most wonderful (বিষ্ময়কর) invention (আবিস্কার) of modern science. It is an ultra modern electronic device of modern technology (প্রযুক্তি). But if has no ability (সক্ষমতা) to do anything by itself. It works on the basis of commands (আদেশ) given by the operator (চালক). It can solve many complicated (জটিল) problems within a short time.
Invention and development: Computer was invented (আবিস্কার হয়েছিল) by the hard work of many scientists. Charles Bavez (চার্লস ব্যাভেজ) is called the father (জনক) of modern computer. He invented the structure (গঠন) of computer in 1833. His invented computer had five parts. these were Store, Mill, Control, Input and Output. By following the structure of computer of Bavez, Harvard University and I. B. M. Company combined (মিলিত) invented the modern computer in 1944. After this, it has been rapidly (দ্রুতভাবে) modified (কিছুটা রুপান্তর করা) and many other computers have been developed.
How It Works: A computer performs (সম্পাদন করা) three functions (কাজ). It receives data, processes it and at last emits (বের করা/নির্গমন করা) it. At first the details of work is put into the input of the computer. It is called programmer. The computer does not work in our language. So the programmer is to be put in its own language. This programmer 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.
Usefulness: Computer is a very useful thing to us. It is used in our daily life for various (নানা রকম) purposes. It has made a great change in education. The students of developed countries use computer to prepare their study materials (উপকরণ). The result of examinations now is prepared accurately (সঠিকভাবে) by computer within a short time.
Computer is used to diagnose (নির্ণয়) diseases. A new process of operation is invented by computer as an alternative to sugary. Beside this, computer is used is grind (চূর্ণ করা) stones (পাথর) in normal pathological (রোগ সংক্রান্ত) test.
Now-a-days, computer is used to prepare document and budget and to store information. The notice of currency and price of any share can be known instantly (তাৎক্ষনিকভাবে) by computer.
At Present, computer is used to run mills, factories and industries in developed countries. Cars, trains and planes are also run by the computer. Computer is being used in space (মহাশূণ্য) research (গবেষণা).
Disadvantages: In spite of having merits of computer, it has also some demerits. It weakens (দুর্বল করা) the eye-sight (চক্ষু দৃষ্টি) of the operator.
Conclusion: The computer is a blessing (আশির্বাদ) of modern science. Today's world cannot be imagined (কল্পনা) without computer. It lessens (কমানো) our labor (শ্রম) and makes our work easy and simple. But computer has not been widely (ব্যাপকভাবে) introduced in Bangladesh. So Govt. should facilitate (সহজতর করা) its use all over the country.
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