Uses of Computer:-
Immense are the uses of computer. Today the utility of computer in life is so great that the modem age is known as computer age.
With the invention of computer complex calculations, which were beyond the reach of man, have become easier. In fact the purpose of the invention of computer was to calculate in an automatic and accurate manner. In the fields where punctuality and accuracy are of paramount importance, the use of computer is indispensable. Weather predictions,processes related to space exploration and research ,monitoring of nuclear power plants are the special fields which can not be developed without computer. Man could step on the moon because of the accuracy and high speed of computer. The use of computer has brought about revolutionary changes in the fields of communication. We can contact the person sitting in any comer of the world by tapping only a few keys and touching some switches and by spending only a very small amount of money. Internet is a very powerful medium of receiving and transmitting information.It is a vast reservoir of information and knowledge from where any information can be obtained instantly. Exam inees can know their results and marks through internet as soon as the result is declared.
With the help of the telephone directory available on internet we can find the telephone number of anyone. The schedule of trains, buses and aeroplanes can be known and the actual position of their running can be known. The information regarding a general passenger train of India is available on internet. All the leading newspapers of the world are available on the internet. On internet we can read the regional page of the main newspapers of Rajasthan by sitting at any comer of the world. We can get the reserva tion of train done sitting at home, we can have the information regarding telephone bill, bank balance etc. There is hardly any information that is not available on the internet. Internet serves as a source of resource for the researchers and writers. With E-mail available on the internet messages can be exchanged from one computer to the other. Sending messages by using e-mail saves both time and money. The message is sent in an instant and it can be received on the other computer lying in any comer of the world the very next instant. We can carry on live conversation with other computer users using Internet Relay Chat. We can contact any phone by using net telephony. The person to be contacted may not have the computer. Conversing with a person abroad is very economi cal. Internet telephony is legal in India now. Video conferencing provides the facility of watching the person we are talking to.
The use of computer has increased in the world of business. Computers are used for general official records and for managing national and international share markets. With the combination of computer and internet a new business system has come into being and it is known as e-commerce. Buying and selling of things and services through internet is called e-commerce. The producers and sellers have found world wide markets of things and services sand there is a great reduction of time and cost in exchanging trade information. Today housewives are buying the household things by sitting at home. The reservations are getting done the cinema tickets are being bought, the hotels are being booked by sitting at home. E-banking is a branch of e-commerce. The account holders can check their balance in the account and they can transfer money from one account to the other by using the internet. We can pay the bills of telephone, electricity, water and transact any business. E-banking has provided the facility of ATM (Automatic Teller Machine) to the customers. We can withdraw amount any time and anywhere. That is why ATM is also called 'Any Time Money' in the popular sense. Computer has already replaced type writer in the offices, besides that the records of the offices, details of establishment and salary records are also maintained by computer. Computer has given birth to the concept of "Paper less Office". E-Govemance is being used for administra tion. In a library, complete details of books, the record of the members of the library, the issuing and returning of books etc. can be done easily by using computer.
Computers are used in publication and printing. These are known as Desktop Publishing (D.T.P.). The traditional work of printing used to be very hard and tedious
but computer has made it very easy.
Computers are being used extensively in the field of medicine and health care. Computers are used for diagnosing illness, curing ailments, surgery, monitoring patients. Ultrasound, CT Scan, MRI etc. tests are used to detect different diseases and malfunctionings .With the help of pictures generated by computers the diagnosing be comes easier.
Pacemaker is a little computer, which is fixed inside patients having heart prob lems. The use of computer is indispensable in the field of Genetic Engineering where DNA structures are studied. By DNA firger printing many complex criminal cases can be solved .With the combination of Bio-Medical science and computer a branch of science Bio-Informataics has come into being.
In the field of education computer is playing a significant role. In classrooms, computers are used to develop science projects, prepare reports, gather information and as an interactive learing pool. Computer is used as a supplement to the teacher. Under Computer Based Teaching (CBT) numerous software are available which provide infor mation of different subjects in succeession. Multimedia (a combination of sound, graphics, animation and video) CBT software is very useful to help student understand any sub ject. Nowadays, online learning and training is possible through networks. A student sitting at home can speak to his/her teacher and can get response for his/her queries. Virtual classrooms are a reality these days.
Computers are being extensively used in the field of engineering and architecture. Computer aided engineering is used by the designers to specify the type of material to be used in buildings, things and parts of machines and to calculate/ determine whether the part could withstand the necessary stress and temperatures. the use of CAE is essential to guaranteeing the safety of big buildings, bridges and planes. through computer aided (CAD) the interior and exterior of objects can be designed, three dimensional design can be prepared and viewed in details on the screen. with the help of the map on the paper we cannot determine how the house will look after completion. But with the help of CAD we can have an idea of how the house will look when built. In hazardous conditions where it is dangerous for man to work, the use of robot has begun. robot is a computer controlled mechanical man.
Computers are being extensively used in the field of entertainment. Nowadays numerous computer games are available which not only provide entertainment but also increase knowledge and develop reasoning faculty of the children. The computer games are so popular that they not only attract the young ones but also the aged ones. Film industry use computers to incorporate special effects and create such scenes which have no place in reality. You must have seen Films like "Jurasic Park", "Godzilla", "Anaconda","Little Struart" etc. All these Films have used computers to create such spe cial effects. With the help of computer the coloured versions of the old Indian Films in black version "Mugal-E-Azam" and "Naya Daur" have been prepared.
Computers have earned a significant place in the relay of Television channels. The channels relaying programs by using computers are called digital channels. The digi tal channels show batter performance than general channels.
Computer is used to produce new musical notes. One computer can produce the musical notes of many musical instruments. producing musical notes by using computer is known as musical instrument digital interface (MIDI).
Computer has entered our houses today. Computers are used for education, en tertainment, Writing letters, E-Mails, Chatting, getting various information from internet etc.
We see that no Field of our life has remained untouched by computer. It is not only useful for a special class but for every person.
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