Thursday, July 3, 2014

Essay: Information Technology

processing and distribution of data through computers.Telecommunications and digital
electronics is called Information Technology.This is an age of IT .The world has changed into
a global village.Easy access to all kinds of data across the world is the fruit of IT.This
is the most leading technology of the present age .The followings are the means that are
used in IT.

Computer is the most important equipment used in IT.A computer is a collection
of simple machines whose activities are coordinated by a central control unit.These
machines can read information and store this information for later use.Mother Board ,
Processor ,RAM, Monitor, Key Board ,Mouse ,CD ROM and Floppy Derive are the main
components of a computer.

The most remarkable features of a computer are speed ,versatility and accuracy
As life has become speedy and quick ,the importance of computer has increased.It is
being used in every field of life.In industry ,it keeps a record of goods,cost and
output.It provides a great deal of help in engineering.It designs buildings of all kinds.
It gives information about the  best material to be used.In medicine, it assists of perform
various tests, diagnoses diseases and prescribes medicine.In space , sea
and earth explorations,it performed wonders .It collects information of
various heavenly bodies, their properties and atmospheric
conditions.It tells us about the treasures hidden deep within the Earth's crust
and  in the depth of seas.In the field of education it has performed wonders.It collects
information for us from the most remote parts of the world.

Data processing is the analysis of data by using one or more computer
programmes.It is widely used in business, engineering ,science and many other fields.Data
processing if of two kinds i.e database processing and transaction processing .A database
is a collection of common records stored in a computer.It can be searched , accessed
and modified .Band account records are the examples of such a
data.Transaction processing refers to the sharing of data between computers.In this
process one computer can access the data stores in other computers.

Internet is a global information system.It works through many interconnected
computer networks.Each network may link tens, hundreds, or even thousands of computer.these computers share information with one another .The internet has enables people all over
the world to effectively communicate with one another .They make information
available to others and find information provided others.

Telecommunications means the sending and receiving of messages over distances.It
consists of devices and systems that transmit electronic signals across long distances.The
common devices of telecommunication are telephone , radio and television.
Telecommunication enables people around the world t contact one another, to access
information instantly , and to communicate from remote areas.

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