The rapid progress in science and technology has broadened the span of information’s of the mankind and is enhancing day by day.

The scientific method of storing, arranging information’s for proper use and to communicate them to others is called the Information Technology (IT).

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Information technology is changing speedily. It is not long ago when the telephone was the only device of communication within the country or abroad. Now –a-days, in addition to telephone fax machine, computer and internet etc. are the main sources of contact. These sources have brought in contact the whole world. By these devices information are transmitted in the form of sound, picture and computerized data.

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The method that is used to communicate information’s too far off places instantly is called “Telecommunication”.