Transcript The Evolution of Communication

The Evolution of Communication
The Evolution of Communication
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How do you communicate?
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The history of communication goes back
thousands of years.
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What has this progress meant to you today?
The Evolution of Communication
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Verbal Communication
The most common form of communication.
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Spoken communication
Languages and dialects
 What dialects are spoken in your area?
– In the country?
The Evolution of Communication
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Written Communication
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Symbols, hieroglyphics, and drawings
The Chinese invent paper
The Evolution of Communication
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Johannes Gutenberg and the Printing Press
Books are now mass produced!
There are many excellent websites and books
on the topic of Gutenberg and his printing
press including,
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Biographies
Printing industry history
Media history
Mobile Communications
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Postal system
The Pony Express
Railroads and telegraph
Morse Code
The Telephone
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Alexander G. Bell calls Watson. Progress
includes the use of operators to connect calls.
The basic operation of the phone is still the
same, changing sound waves to electrical
waves, and back again to sound waves.
Have you ever tried talking to someone using
two tin cans and a string?
The Telephone Lines
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Multi-wire Cables
Fiber Optics
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Much larger capabilities using light to transmit
Wireless Communications
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Radio
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Cell Phones
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Television
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Satellite Communications
Computers and the Internet
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Computers can handle large volumes of
information. The computer stores this
information by using a digital code.
The Internet is made up of millions of
computers connected to each other in a variety
of ways.
Communication Aboard the
USS Lexington
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Morse Code using light
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Infrared signals
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Hand-held Flag signals
A Signalman’s Biggest Challenges
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It is very important for a signalman to stay
awake, and process messages with speed and
accuracy.
Yardman Flags
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Flag Design
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Interpreting flags
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Storing the flags
Communication on the USS
Lexington
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Voice tubes
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Call signal boxes
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Engine order telegraph
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Pneumatic tubes
Combat Information Center
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The communication brain of the ship. The main
communication tool of this room is the sound
powered phone.