What is the importance of computer.
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Answer Posted / tamer
A computer is an electronic device, which executes software
programs. It consists of 2 parts-hardware and software . The
computer processes input through input devices like mouse
and keyboard. The computer displays output through output
devices like color monitor and printer. The size of a
computer varies considerably from very small to very big.
The speed of computers also has a very large range.
Computers have become indispensable in today’s world.
Millions of people use computers all over the world.
There are several uses of computers: -
* Word Processing - Word Processing software
automatically corrects spelling and grammar mistakes. If the
content of a document repeats you don’t have to type it each
time. You can use the copy and paste features. You can
printout documents and make several copies. It is easier to
read a word-processed document than a handwritten one. You
can add images to your document.
* Internet - It is a network of almost all the computers
in the world. You can browse through much more information
than you could do in a library. That is because computers
can store enormous amounts of information. You also have
very fast and convenient access to information. Through
E-Mail you can communicate with a person sitting thousands
of miles away in seconds. There is chat software that
enables one to chat with another person on a real-time
basis. Video conferencing tools are becoming readily
available to the common man.
* Digital video or audio composition – Audio or video
composition and editing have been made much easier by
computers. It no longer costs thousands of dollars of
equipment to compose music or make a film. Graphics
engineers can use computers to generate short or full-length
films or even to create three-dimensional models. Anybody
owning a computer can now enter the field of media
production. Special effects in science fiction and action
movies are created using computers.
* Desktop publishing - With desktop publishing, you can
create page layouts for entire books on your personal computer.
* Computers in Medicine - You can diagnose diseases. You
can learn the cures. Software is used in magnetic resonance
imaging to examine the internal organs of the human body.
Software is used for performing surgery. Computers are used
to store patient data.
* Mathematical Calculations - Thanks to computers, which
have computing speeds of over a million calculations per
second we can perform the biggest of mathematical calculations.
* Banks - All financial transactions are done by
computer software. They provide security, speed and convenience.
* Travel - One can book air tickets or railway tickets
and make hotel reservations online.
* Telecommunications - Software is widely used here.
Also all mobile phones have software embedded in them.
* Defense - There is software embedded in almost every
weapon. Software is used for controlling the flight and
targeting in ballistic missiles. Software is used to control
access to atomic bombs.
* E-Learning – Instead of a book it is easier to learn
from an E-learning software.
* Gambling-You can gamble online instead of going to a
casino.
* Examinations-You can give online exams and get instant
results. You can check your examination results online.
* Computers in Business - Shops and supermarkets use
software, which calculate the bills. Taxes can be calculated
and paid online. Accounting is done using computers. One can
predict future trends of business using artificial
intelligence software. Software is used in major stock
markets. One can do trading online. There are fully
automated factories running on software.
* Certificates - Different types of certificates can be
generated. It is very easy to create and change layouts.
* ATM machines - The computer software authenticates the
user and dispenses cash.
* Marriage - There are matrimonial sites through which
one can search for a suitable groom or bride.
* News-There are many websites through which you can
read the latest or old news.
* Classmates-There are many alumni websites through
which you can regain contact with your classmates.
* Robotics - Robots are controlled by software.
* Washing Machines - They operate using software.
* Microwave Oven - They are operated by software.
* Planning and Scheduling - Software can be used to
store contact information, generating plans, scheduling
appointments and deadlines.
* Plagiarism - Software can examine content for plagiarism.
* Greeting Cards - You can send and receive greetings
pertaining to different occasions.
* Sports – Software is used for making umpiring
decisions. There are simulation software using which a
sportsperson can practice his skills. Computers are also to
identify flaws in techhnique.
* Aeroplanes – Pilots train on software, which simulates
flying.
* Weather analysis – Supercomputers are used to analyze
and predict weather.
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