G5 chapter 14

Chapter 14 Communication Then and Now

Word            meanings 

1.Engineering: Building and designing things using science
2.Operator: Person who runs a machine
3.Portable: Easy to carry
4.Businesses: Work done to earn money
5.Communication: Sharing information

1. Short answers.

Q1. What is meant by communication?
Ans - Communication is the process of sharing information, ideas, or messages.
Q2. What is a pager?
Ans - A pager is a small portable device used to receive short messages.
Q3. What is a smartphone?
Ans - A smartphone is a mobile phone that can make calls, send messages, and use the internet.
Long Answers
Q1. Explain how STD calls work.
Ans - STD (Subscriber Trunk Dialling) calls allow people to make long-distance calls directly by dialing the STD code and phone number, without operator help. The call is connected through telephone exchanges.
Q2. Why is mass communication important in today’s world?
Ans - Mass communication is important because it helps share information quickly with many people. It spreads news, education, and awareness through TV, radio, newspapers, and the internet.

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