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From Smoke signals to Keeping in touch

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Presentation on theme: "From Smoke signals to Keeping in touch"— Presentation transcript:

1 From Smoke signals to Email: Keeping in touch
Page 12 From Smoke signals to Keeping in touch

2 Some types about signals (Communications means)
Mountaintops Signals by shouting smoke from fire to transmit messages Towers Signals Drum Signals Letters telegraph

3 New Vocabulary

4 Scan the topic to find the answers of the following questions
To scan means to read quickly to find specific information.

5 a chain of fires on mountaintops.
About reading passage: Find the answers of these questions 7 Min. NO. Question 1 What was used in Greece to relate the news of the fall of Troy? 2 What did Cyrus, an ancient Persian ruler, establish? 3 When was the first message? 4 Who was Ray Tomlinson ? 5 How was the number of people in the 20 and 21 centuries? a chain of fires on mountaintops. lines of signal towers. It was in 1971. one of a group of scientists who were working on developing better computers. In 20 century there were 263 million boxes. In 21 century has grown to over 2 billion.

6 More questions about the topic.

7 Answer these questions:
Paragraph (1) 1. What was used in Greece to relate the news of the fall of Troy? a chain of fires on mountaintops. 2. What did native people in the Americas use to transmit messages? smoke from fires.

8 3. What did native people developed?
They developed a code—in which certain combinations of smoke rising had special meanings. For example, two parallel columns of smoke indicated the successful return of a war party.

9 4. What did Cyrus, an ancient Persian ruler, establish?
Paragraph (2) 4. What did Cyrus, an ancient Persian ruler, establish? lines of signal towers. 5. What was the idea of signals towers? People with powerful voices shouted a message to the next tower, and in this way, news and information was passed on through the kingdom

10 6. How did people (native) in central Africa use the drum?
The sender uses a drum that can produce a high or low tone. Because the local dialect alternates in these tones, the sender is able to simulate speech with the drums.

11 No, they do not. They use new methods.
Paragraph (3) 7. In modern time, Do people still use the ancient ways for communications? No, they do not. They use new methods. 8. When was the first message? It was in 1971. 9. What did these letters mean “QWERTYUIOP? This is just the top row of keys on an English-language keyboard. Tomlinson was just testing out the system and using a nonsense message

12 11. What did the scientists do?
Paragraph (4) 10. Who was Ray Tomlinson ? one of a group of scientists who were working on developing better computers. 11. What did the scientists do? scientists were able to send a message to a “mailbox” on the computer on their site. 12. Did Ray Tomlinson invent the sign? Explain Yes, he did. To identify messages that were headed out of the local machine to the more distant ones.

13 Paragraph (5) 13. How was the number of people in the 20 and 21 centuries? In 20 century there were 263 million boxes. In 21 century has grown to over 2 billion. 14. What do you think about the function of and cell phones messages in the future? The functions of services in the future will become more and more diversified. And text messaging on cell phones is also increasing.

14 A war party was returning.
The Stone Age. A war party was returning. can understand the drum Lang. starting a revolution in communication. there were 263 million boxes. being in constant touch with people who are long distances away.

15 It doesn’t cost a lot of money Email
Fast and easy to use Cost a lot of money Text messages You can call in anywhere and available to everyone Cost a lot of money Cell phones You need to be in a place that has a hot spot (wireless connection) It doesn’t cost a lot of money

16 All Copy Rights © Reserved 2018
Prepared by. Khalid S. A. Al Shahrani All Copy Rights © Reserved 2018


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