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Slide 1 Slide 2 Slide 3 Television What? The transmission of visual images and accompanying sound through electrical and sound waves. Who? John Logie Baird was a Scottish…

1. Produced by Dawid Krystosiuk Telephone 2. The telephone The telephone (from the Greek: τῆλε, tēle, "far"and φωνή, phōnē, "voice")…

1. How Do telephone’s workFind out right now! 2. TelephonesBefore there were any telephones invented, people used to send long letters which was very tiring. Now people…

1. How Do telephone’s workFind out right now! 2. TelephonesBefore there were any telephones invented, people used to send long letters which was very tiring. Now people…

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1. History of Communications 3500 BC to 2900 BC• The Phoenicians develop an alphabet. • The Sumerians develop cuneiform writing pictographs of accounts written on clay…

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