Page 173 - SST Class 07

g The invention of printing press, radio,
television, development of satellites, radar
and computers has greatly revolutionised
the communication system.

g Satellites have helped in oil exploration,
survey of forest, underground water, min-
eral wealth, weather forecast and disaster
warning.
g Postal and telegraph services, telephones,
e-mails, etc. are personal means of commu-
nication.
g Through Newspapers, magazines, radio,
television, films, etc. communication can be
done with large number of people. This is
known as Mass Communication. Means of Communictaion

g Mass Communication can provide both g Internet not only provides us with world-
education and entertainment. wide information and interaction but has
g Wireless telephonic communications also made our lives more comfortable.
through cellular phones have become very g Now, we are a large global society, of the
popular today. world.

Terminology

Cluster : a group of similar things or people positioned or occurring closely together
Revolutionised : change (something) radically or fundamentally
Transhumance : the action or practice of moving livestock from one grazing ground to another in a
seasonal cycle
Merchandise : goods to be bought and sold
Slathering : spread or smear (a substance) thickly or liberally

Inside Story
Inside Story
g A cluster of houses form a settlement.

g Settlements are classified into rural and urban settlements.
g Villages are known as rural settlements. They depend on agriculture.
g Urban settlements mostly perform non-agricultural functions.
g Means of communication carry messages and ideas.
g Roadways, railways, waterways and airways are the different means of transportation.
g Radio and television are means of mass communication.

g The telegraph, telephone, fax and e-mail are important means of communication.

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