#InformationTechnology
Introduction
Computer is an electronic device used in almost every field; even where it is most
unexpected. Now we cannot imagine a world without computers. These days, computers
are used extensively by engineers and scientists and also by millions of people around
the world. That is why this age is called as the era of INFORMATION TECHNOLOGY
(IT).
A computer is made up of two components - one is the hardware and the other is the
software. All physical components of computer including keyboard, mouse, monitor, etc,
are a part of the hardware. The programs and languages used by the computer are called
software.
The computer has become very important now-a-days because it is accurate, fast and can
accomplish many tasks easily. Otherwise, to complete those tasks manually much more
time is required. It can do very big calculati
using internet.
Today, the computer is used in different fields, which include the following:
Banks
Almost every bank uses computers to keep the records of money transactions and financial
documents. It is also used in this sector because of the speed, convenience and security
that it provides.
Communication
Communication has become very easy and simple through internet and email. Computer
communicates using telephone lines, modems and satellites. Through email we can send
messages in a split-second to anybody in any part of the world. On the other hand, the
traditional form of communication, for example postal services takes many days to reach
the recipient. So the internet has helped to make the earth a global village and above all, it
saves time. Internet helps us to find information on every topic. It is the easiest and fastest
way of commuincation. Computer network makes the user capable of accessing remote
programs and databases of same or different organizations.
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Information Technology – Class IX
Business
Computer has now become an integral part of corporate life. Business transactions take
place very easily, accurately and records of all the business transactions can be stored.
Today computers can be found in every store, supermarkets, restaurants, offices etc. One
can buy and sell things online, bills and taxes can be paid online and even the future of
business can be predicted using artificial intelligence software. Computers also play a
very important role in the stock markets.
Medical Science and Health Care
Diseases can be easily diagnosed with the help of computer and we can also know about
the cure. Almost every medical diagnostic equipment uses a computer. In the field
healthcare, computers are used to perform various tasks such as reviewing medical records
of patients. Using computers, doctors can easily search information about latest drugs the we are using
computers in every field. Without the knowledge of computer we cannot get a job and
perform well in it. So computers can improve job prospects. Computers are used in class
rooms by teachers to teach, maintain records of students, online learning and assessment
Media
Almost every type of editing and audio- visual composition can be made by using special
software made for the purpose. Some software can even make three dimensional figures
which are mostly used in making cartoon films. Special effects for action and science
fiction movies are also created on computer.
Travel and Ticketing
With the advent of computers, ticketing and reservations have become an easy task. Nowa-
days, it is possible to reserve our train tickets over the internet. Reservation of tickets
can be done through the Indian Railway Catering and Tourism Corporation (IRCTC)
website of Indian Railways. It also allows one to check the railway seat availability and
PNR status in real-time.
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Information Technology – Class IX
Weather Predictions
Weather predictions are also possible by the experts using supercomputers. Weather
forecasting now relies on computer-based models that take many atmospheric factors
into account. Ever since computers are being used, there is a greater accuracy in weather
forecasting.
Sports
Computers are also used for umpiring decisions. Many a times, the umpire has to go for
the decision of third umpire in which the recording is seen on the computer and finally an
accurate and fair decision is reached. Simulation software helps the s
movie-goers cannot distinguish real actors from computer-generated images. Musicians
can use computers to create multiple-voice compositions and to play back music with
hundreds of variations.
Social Media
individual will want to share, will get out into the world. Sites such as Facebook, Twitter,
YouTube and LinkedIn allow people to share ideas on not just news, but also on products
and services.
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Information Technology – Class IX
Mobile Computing
Mobile computing is the human–computer interaction by which a computer is expected to
be transported during normal usage. Mobile computing involves mobile communication,
mobile hardware, and mobile software. It also means being able to use a c