Define the terms
1. Satellite- an electronic device sent into space to collect information is called satellite.
2. Internet-is a communication network that link computers all over the world.
Answer in short
Q. What is the meaning of communication?
Ans. I) Sending and receiving message is called communication.
II) Communication can be divided as personal communication and mass communication.
Q. How do post office help us to communicate?
Ans. I) We can buy stamps, inland letters, postcards and stamped envelopes from the post office.
II) they provide us speed post or courier services.
Q. However messages sent in the past?
Ans. I) Long ago, trained pigeons carried messages from one place to another.
II) people went on foot or on animals to deliver messages.
Q. What is the full form of SMS?
Ans. The full form of SMS is Short Message Service.
Answer in detail
Q. How do satellites play an important role?
Ans. Satellites help us in many ways-
I) it helps us to watch various events live.
II) it helps in weather forecasting.
III) it helps in better communication methods.
IV) it helps in connecting to any part of the word.
Q. A few modern means of communication.
Ans. Some modern means of communication are-
- Smartphone
- E-reader
- Tablets
Q. Mention two advantages of a telephone.
Ans. Two advantages of a telephone are-
I) we can talk to anyone living anywhere in the world.
II) we can send instant messages or SMS.
Q. How can we communicate through computers?
Ans. We can communicate through computers by -
I) sending email.
II) Sending videos pictures and letters.
III) we can sit and talk through web cam.
IV) we can collect latest information.
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