Friday, May 18, 2012

Use of Computer

Use of Computers:

Many of the routine activities in today’s society are being performed by computers. For example, when we go on holiday our seats are often reserved with a computer. The traffic in the some major cities is, to a large degree controlled by computer. Many of the bills we pay are calculated and printed by a computer. Hence computer has marked a new era in the history of development of man’s life.
Because of its extremely high seed, a computer can carry out calculation in just a few minutes that would require months perhaps even years if carried by hand. This very high speed is accompanied by an equally high level of reliability. Thus a computer practically never makes a mistake of its own accord. Computers are devices which process information very fast. These machines can be programmed and can be made to perform repetitive type of calculations consistently, accurately and speedily.
Computers cannot ‘think’ in the way humans can do. They can do what they are told. Finally, it is important to appreciate the once a computer has been given a piece of information, it is always capable of ‘remembering’ it at any time. In this sense, it is far superior to human being. The computer, however, can always find any piece of information that it has in store, and this data can be reproduced tomorrow, or in years to come, exactly in its original form provided that nobody has deliberately changed it.
Writing of a programme is essential for computer, and it is the job of a specialist. A computer programme is the complete list of instructions which the computer performs in order to solve a problem. There are many different languages that can be used to programme a computer.

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