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Role of Computers in Our Life

What is Computer?

A computer is an electronic device that solves problems by processing data according to instructions.”Computer” comes from the Latin computare which means to reckon up. It is interesting to note that the first mechanical digital calculating machine was built as early as 1642 by the French scientist Blaise Pascal. The first automatic electronic digital computer was prepared in America in 1946. The modern computers using stored=program digital processors were introduced in the 1950s. Two classes of computers have been in use, digital and analog.

The electronic computer is rightly called the wonder of the machine age. It can add, subtract, multiply and divide ‘’with lightning speed and perfect accuracy.’’ It can multiply several ten-digit numbers in 1/1000 second working 500,000 faster than a human being.

We give a program to computer to work for us in any field air, sea, land and space travel, industry, construction, banking, medicine teaching, warfare, library work, business management, natural disasters, and so on.

Computers in business and Industry

In business and industry, the computer prepares and keeps lists of goods, correspondence records and sales and profit and loss accounts. It can inform us of the production needs and the best production processes for a certain factory. It can compare several industrial process of production and let us decide about the e best ones. Thus, in the shortest time we can have the details of working of hundreds of factories on the computer screen and have the results of their production sitting comfortably in a room of our choice.

A computer can solve all kinds of engineering problems of building, those of designing various building structures, finding the most accurate and effective material mixtures and safety measures for earthquake proof and sound proof rooms. This computer accuracy has reduced building time, has helped us to save money and to construct structures of so many kinds that one mind or a few minds can never think of (contemplate).

In space or sea exploration, the computer is extremely useful. It collects information from the other space regarding distances, various heavenly bodies in movement, rays and beams and their effects, the earth’s position and possibilities of man’s travel into space. In the same way, information from the depths of ocean is conveyed by sensitive computers regarding availability of oil, minerals, precious stones, sea and vegetable life, and rocks and sea beds. So going upward into space and around the earth and downward into the ocean and sideways in water facilitated by computers.

Rockets, satellites and spaceships are controlled through computers. In air travel computers are used to direct air flights between different cities, to control the speed and heights of planes and to help in taking off and landing. Computer training courses of airline pilots and the ground staff at airports are necessary for smooth operation. In the same way, the operation of the railways and fast-moving vehicles on the roads is controlled by computer for safe and accurate travel.

Computers have made possible the smooth working of the telecommunication systems, that is, the process of receiving or sending messages by telephone, radio, television, telegraph, fax, internet, radar, and satellites. Millions of telephone lines over the country remain in operation through computerized telephone exchanges. Radio or wireless, TV and satellite communication is now extremely fast and complex.

In medicine, computers are being widely used to diagnose or determine diseases, to prescribe medicines and to perform various tests like blood and heart analysis. They help maintain records of patients to be made available at a moment’s notice.

In education, computers started to be used in the 1960s. Instructional computers are used in two ways-to provide direct presentation of data or to act as a teacher to test the understanding and knowledge of the student. The computers can very systematically present, in different ways, and with a wide variety of examples, the developments in the field of knowledge. It can do in a short time what a number of people do in a number of years in whole part of library. It makes its own notes. In an examination, it gives tests and gests ready answers. It corrects the answers and then begins asking more difficult questions. In this way, students can individually and independently study and have themselves tested with immediate results.

Computers have brought about a revolution in typing. Computer typing is fast, accurate and beautiful, in several patterns and shapes. In computer typing, moving rays of light from a laser lens are used.

In computer music, the composer programs the computer to produce different rhythms, tunes and tones from some sounds stored in it. These sounds are stored in magnetic tape and can be played back. The computer helps in expanding the range of tones and tunes. An electric computer can store in its memory information and facts of all kinds in regular forms. A small disc can keep material that several books and many files might contain. Whole libraries and complete office records can be computerized. In all country banks, hospitals, libraries, company and government offices, educational institutions, military departments, etc. have been or are being computerized. The ID card computerization in complex social situation has enabled us to maintain life records of all the citizens permanently.

Computers cannot replace Human Beings

With all the computer progress, we can say that computers cannot replace us. Our brain has more than 10 billion cells whereas a computer has only a few hundred thousand parts. While we can think and imagine independently, a computer cannot.

Definitely, the advantages of using computers outweigh the disadvantages. Computers save our time in solving our technical, social and national problems through their excellent memory and problem-solving mechanisms. They make teaching easy and promote independence in students. However, they mechanize our life rather too much. We begin using our minds less and computers more, thus affecting adversely our thinking and intelligence. Though we spend huge amounts of money on education, computer-program teaching becomes a dull affair without the interesting question-answer free classroom atmosphere. In any case, computers have taken the economies of the US, Canada, most European countries to great heights. We cannot have scientific industrial, technological and social progress of the highest order without a free and wide use of computers. Computerization and modernization now go together.

Computers


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