D. Answer the following questions
1. How is the Internet useful to us? Explain any two uses of the Internet.
The Internet is useful to us in many ways.
It helps us to get information for studies and homework.
It helps us to communicate with people through e-mail and video calls.
2. Write any two advantages of an e-mail.
E-mail is very fast and messages are delivered quickly.
We can send the same e-mail to many people at the same time.
3. Explain the components of an e-mail program.
The main components of an e-mail program are:
To: It is used to write the e-mail address of the receiver.
Subject: It shows the topic of the e-mail.
Message box: It is used to type the message.
Send button: It is used to send the e-mail.
4. Explain the types of network.
There are three main types of networks:
LAN (Local Area Network): It connects computers in a small area like a school or office.
MAN (Metropolitan Area Network): It connects computers in a city.
WAN (Wide Area Network): It connects computers over a large area like different countries.
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