Computers are now used in almost every field of life from military applications to entertainment. Some major areas of computer usage include the military, banks, research, education, media and communication, criminal identification, edutainment, business, animation, book publishing, commercial purposes, engineering, sports, medical, government, libraries and museums. Computers facilitate complex computations, online banking, mobile banking, online education, e-commerce, special effects in movies, digital reading and publishing, hotel bookings, engineering design, sports training, medical diagnostics, and government administration.

1. APPLICATIONS OF COMPUTER
Submitted by - Arpita Singh
Class - IX – A
School - Greenland Public School

2. The invention of computers has led to the advancement in
science and technology. Life has become more efficient with
the use of computers in our day to day life. Earlier, it was
mainly used by large organizations for scientific research and
engineering applications. But today, computer is being used in
almost every field of our life. The major areas of computer
applications are as follows:

3. MILITARY
Computer plays a vital role in the design and development of high-tech weapons
for defence where absolute accuracy is essential. The whole world saw the vast
use of computers in defence during the Gulf and Afghanistan wars and also in
Iraq war. Computerized simulation exercises are very helpful in training the
pilots. Computer are used to help in fighting terror by locating unlawful
elements in the world with high accuracy. With
The use of computer technology, government
around the world can successfully execute their
plans through effective planning.

4. BANKS
As a result of computerization and networking of a large number of a large
number of banks, several number of banks, several facilities are being offered
to the customers. Using online banking, you can check your past transactions
from the date of account opening with real time balance. Money can easily be
transferred to any account across the globe. Internet banking also allows us to
use ATM or debit card to shop, buy tickets, pay bills for utility services like -
electricity, telephone and post paid mobiles.
We can even subscribe to free monthly bank
account statements and apply online to open
fixed deposits. The facility of subscribing to
mobile banking enables us to virtually carry
along the bank with us.

5. RESEARCH
Computer is facilitating the research work in a tremendous way by performing
complex computations, which sometimes seem impossible for humans. Some
of them are listed below:-
The computations required for launching a new satellite into the space.
Earthquake and Tsunami warnings are possible with the aids of computer.
Weather forecasting is done with the
help of computers.
Impact of nuclear tests can be studied
using computers.

6. EDUCATION
Computer aided learning and teaching is changing the entire spectrum of our
education system. The multimedia rich computerized animation and videos help
students to understand the concepts in a very simple and effective manner. Now
it has become possible to conduct online entrance exams at national and
international level with the help of computers. The result of various education
boards as well as entrance exams are
available online.

7. MEDIA AND COMMUNICATION
Computer has played a major role in revolutionizing the communication system.
From the advent of telephone and TV, which were perceived as incredible things,
we have come a long way to enjoy the facilities, like mobile phone, Internet,
email, SMS, chatting, cable TV, video conferencing etc. All these things would gad
not been possible without the evolution on computers. Not only this, but a
variety of musical formats can be
played as well as recorded by using
computers.

8. CRIMINALIDENTIFICATION AND
LAW ENFORCEMENT
Computer can create close resembling photographs of criminals. This helps C.B.I.
Staff to identify the criminals. The police uses DNA finger printing technique to
identify accused with the help of skin, hair and blood samples collected from the
site of crime.
The traffic police uses speed cameras on
lights to monitor people for law violation. The
police also uses computer to track the
Information of stolen automobiles and mobile
phones in order to catch the criminals in no
time.

9. EDUTAINMENT
At home computer is being used for education as well as entertainment. With the
advancement of a computer, members of a family can have an easy access to games,
music, movies, e-mails, chatting and research for their projects and assignments.
People can even enjoy the facility of watching television on their computers.

10. BUSINESS
Computer has helped in improving business activities throughout the world.
Organizations can have access to the latest technology and manpower across the
world. E-commerce has completely changed the scenario of online shopping.
Global business relations can now be maintained through Internet. Computers are
used in offices for maintaining sales and marketing records, stock control, planning,
production, tax records, preparing salary sheet
etc.

11. ANIMATION AND FILMS
In the field of entertainment, computer is used for making cartoon films, producing
special musical effects, and bringing fantasy to life in movies. Cartoon characters, like
Walt Disney’s Mickey and Donald, Tom and Jerry etc are given animation effects
through computers. Movies like Jurassic Park, Godzilla, Happy Feet, Robot, Koi Mil
Gaya, and Kung fu Panda have used the latest computer animation techniques for
giving special effects

12. BOOK PUBLISHING AND READING
With the help of computers, now a days anyone can read any book at any place
and any time. Now we don’t need to buy it, all what we have to do is to download
it.
Not only this, with the help of computer, designing, typing, and editing work can
be done with great ease and efficiency. One can insert pictures, apply various
formatting features, and styles to a
book in no time using a computer.

13. COMMERCIALPURPOSE
Advance reservation of rooms in hotels and booking of cinema tickets is now
possible from any where with the advent of Internet. The billing system in theaters,
shopping malls, and hotels has become possible through computers.

14. ENGINEERING AND
MANUFACTURING
Architects and engineers take the aid of Computer Aided Design and Computer
Aided Engineering for designing and manufacturing high quality products, like car
and planes. With the help of this technology, they to can design the layout of the
building and can view the objects in detail.

15. SPORTS
Computers are also use in the field of sports. The sports equipment used by
athletes is first tested on the computers. There are several sports exercising
equipments, which have in build programs to train the sports person. The
training of athletes is done with the aid of computers. Scoreboards, recording
speed of players, action replays, printing and selling of tickets are also done with
the help of computers

16. MEDICAL SECTOR
Computers help in diagnosing diseases and controlling important medical
processes , like CITI scan , X-rays , ECG , and Ultra sounds . Computerized
equipments are helpful in maintaining patients’ medical records and
performing surgeries . Computers can be used for research and to help the
doctors in the doctors in the treatment of diseases.

17. GOVERNMENT SECTOR
Computers are used for official correspondence , budgeting , accounts ,
reporting , payroll , attendance ,uploading , of various schemes , forms , etc.
Sectors , like Census bureau , income tax , airlines ,and railways , electricity
boards or telephone exchanges are benefitting from the computer
technology.

18. LIBRARY AND MUSEUM
The computers in library help to maintain the records of issue and deposit
dates of books, encyclopedias, CDs etc. A computer cam maintain subject
wise listing of books and help in listing of books quickly. People can read news
papers, magazines and journals online. In museums, computers are used to
give information and play recorded commentary on relevant topics.