Science has discovered many wonders & computer is one of them.it is an ultra modern electronic device for storing & analyzing information fed into it.it has no capacity to do anything by itself.it works on the basis of commands given by the operator.
Computer was not invented over night.first of all pascal invented the theory of ''digital calculating system'' in 1642.though his attempts were not crowned with success,he initiated the research which paved the way to the invention of computer.finally Mr.Haward Akin,an American scientist invented such a machine in 1937 that could do difficult sums.so the credit for the invention of modern computer goes to Haward Akin.after 7 years electric computer was used in Harvard University in 1944.after that many other computers have been invented such as EDSAC in 1945 & ENTANCE in 1946 etc.a computer consists of 5 major components.they are the input unit,the output unit,the memory unit,the control unit & the arithmetic unit.a computer performs three functions:1.it receive data,2.it process data,3.it emits data.every computer has a machine language of its own & accordingly a computer functions.machine language is not fixed.it varies from machine to machine.programmers written in machine languages are machine dependent & they are only good for that particular machine.computer has great use to us.it renders great service to mankind.it is like Aladdin's magic lamp or magic wand.it has lessened our work loads & made our life easy & comfortable.it is used in our daily life for various purpose.
(1)In education:Computer is a media of education in the developed countries.the students of developed countries use computer to prepare their study materials.they learn many things within the shortest possible time.results of various examinations are prepared accurately with the help of computer within the shortest span of time.
(2)In medical science:Nowadays in developed countries computer is used to diagnose a disease.a newer process of operation has been invented by computer as an alternative of surgery.it is used to grind stones in normal pathological tests.
(3)In commerce:Nowadays business,commerce & trade can not be thought of without computer.it does wonder.it is used to prepare documents,to make lists of goods,store information & to prepare budget etc.Management personnel use computer to take decision.the value of currency & price of any share can be known instantly by the computer.
(4)In agriculture:Today computer is used in the field of agriculture in the developed countries.a farmer of America simply puts on the switch of the computer & gets everything done.
(5)In printing:Today printing can not be thought of without computer.it is an indispensable part of printing.thousands of books are composed with the help of computer within a very short time.
(6)In industrial sector:In the developed countries computer is used to run mills,factories & industries.trains & planes are run by the computer.
(7)Source of income:Computer is a source of great income.many developed countries & advanced countries export software & hardware & earn a lot.
There is no unmixed blessings on earth.everything has its dark sides.computer has its own demerits.it causes diseases like Respitutive Stress injury & weakness the eye sight of the operators.of late computer has been introduce in Bangladesh.many government & non-government offices,educational institutions are using computer.a course on computer gas been introduced in secondary & higher secondary levels.the day is not far to come when computers will be used in every sphere of life
Computer is great use to us.we can not go a single moment without computers.it is a part & parcel in our daily life...................................................................................................................................
Computer was not invented over night.first of all pascal invented the theory of ''digital calculating system'' in 1642.though his attempts were not crowned with success,he initiated the research which paved the way to the invention of computer.finally Mr.Haward Akin,an American scientist invented such a machine in 1937 that could do difficult sums.so the credit for the invention of modern computer goes to Haward Akin.after 7 years electric computer was used in Harvard University in 1944.after that many other computers have been invented such as EDSAC in 1945 & ENTANCE in 1946 etc.a computer consists of 5 major components.they are the input unit,the output unit,the memory unit,the control unit & the arithmetic unit.a computer performs three functions:1.it receive data,2.it process data,3.it emits data.every computer has a machine language of its own & accordingly a computer functions.machine language is not fixed.it varies from machine to machine.programmers written in machine languages are machine dependent & they are only good for that particular machine.computer has great use to us.it renders great service to mankind.it is like Aladdin's magic lamp or magic wand.it has lessened our work loads & made our life easy & comfortable.it is used in our daily life for various purpose.
(1)In education:Computer is a media of education in the developed countries.the students of developed countries use computer to prepare their study materials.they learn many things within the shortest possible time.results of various examinations are prepared accurately with the help of computer within the shortest span of time.
(2)In medical science:Nowadays in developed countries computer is used to diagnose a disease.a newer process of operation has been invented by computer as an alternative of surgery.it is used to grind stones in normal pathological tests.
(3)In commerce:Nowadays business,commerce & trade can not be thought of without computer.it does wonder.it is used to prepare documents,to make lists of goods,store information & to prepare budget etc.Management personnel use computer to take decision.the value of currency & price of any share can be known instantly by the computer.
(4)In agriculture:Today computer is used in the field of agriculture in the developed countries.a farmer of America simply puts on the switch of the computer & gets everything done.
(5)In printing:Today printing can not be thought of without computer.it is an indispensable part of printing.thousands of books are composed with the help of computer within a very short time.
(6)In industrial sector:In the developed countries computer is used to run mills,factories & industries.trains & planes are run by the computer.
(7)Source of income:Computer is a source of great income.many developed countries & advanced countries export software & hardware & earn a lot.
There is no unmixed blessings on earth.everything has its dark sides.computer has its own demerits.it causes diseases like Respitutive Stress injury & weakness the eye sight of the operators.of late computer has been introduce in Bangladesh.many government & non-government offices,educational institutions are using computer.a course on computer gas been introduced in secondary & higher secondary levels.the day is not far to come when computers will be used in every sphere of life
Computer is great use to us.we can not go a single moment without computers.it is a part & parcel in our daily life...................................................................................................................................
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