1. Grade 7 Technology Education
Communications Technology Module
Grade 7 Technology Education

2. History of Communication Tools
The history of communications dates back to the earliest signs of life.
Human communication was revolutionized with speech about 200,000 years ago. Information could be passed on from person to person over many generations through storeytelling.

3. History of Communication Tools
Symbols were also used to store information for longer periods of time. Cave paintings by cave men and carvings in rocks by ancient Greeks and Egyptians are some examples.

4. History of Communication Tools
The creation of an alphabet and the development of written language and paper further improved communications. Later on books and newspapers were used to communicate information and ideas. The development of the printing press lead to the widespread availability of books even to the lower class.

5. History of Communication Tools
Communication across great distance was limited by the loudness of the human voice. Telecommunication tools were developed to communicate information across greater distance.
The first telecommunication transmission signals occurred in Africa. There were both visual and audio.
Smoke signals and drums

6. History of Communication Tools
The first coded electrical telecommunication was by text messages which occurred in 1838.
Electrical telegraph

7. History of Communication Tools
In 1876, the development of the telephone allowed sound transmission.

8. History of Communication Tools
The wireless radio was not seen until It was patented by Guglielmo Marconi.

9. History of Communication Tools
The first transmission of moving images was not available until 1927 with the invention of the television.

10. History of Communication Tools
With the discovery of video transmission, videophones were developed to help people with hearing disabilities. This was in 1930.

11. History of Communication Tools
The next major historical event did not occur until 1964 when fiber optics were applied.
This was significant since it permits transmission over longer distances and with higher bandwidths.

12. History of Communication Tools
With the optical fiber, computer networking began in This was a big tool for business communication throughout the world.

13. History of Communication Tools
In 1981, mobile phones allowed for communication without connection to a fixed land line.

14. History of Communication Tools
SMTP became possible in 1982.

15. History of Communication Tools
The largest information resource was connected in Of course, this is the Internet.

16. History of Communication Tools
Complete assignment