CLASSIFICATION/MEANS OF TRANSMITTING INFORMATION - INVENTION OF PRINTING- RADIO AND TELEVISION- COMPUTER STAGE (JS1 NOTES)

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 CLASSIFICATION/MEANS OF TRANSMITTING INFORMATION

  INVENTION OF PRINTING- RADIO AND TELEVISION- COMPUTER STAGE

Evolution of ICT has passed through different stages. They are:

(i)                  Invention of printing stage

(ii)                Invention of radio and television stage

(iii)               Invention of computer stage

(i)                  Invention of printing stage: This is the use of machines to produce copies of information. Printing technology made it possible for a large quantity to be produced at the same time.




(ii)             Invention of radio and television stage:

Radio a method of information transmission by the use of electromagnetic waves (without using a connecting wire) while television is transmitting information to the people using radio and picture. Radio uses radio waves while television uses digital technologies that allows a better quality of the TV image.


(iii)            Invention of computer stage: Computer is an electronic machine which accepts, stores and processes data to produce accurate results for the user. 




Class Activities


1. Explain invention of radio and television.

2. Explain invention of computer




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