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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Why did Radio's used to be called Wireless |
Radio used to be called Wireless because distance messages were using radio waves instead of using wires |
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Who invented the Morse Code |
Samuel Morse invented Morse Code for sending telegraph messages. |
Morse tells us about Samuel Morse |
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Who invented the Radio |
Guglielmo Marconi invented the Radio. |
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When was Typwriters invented |
Typewriters were invented during the 1870s. |
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What did the First keyboard have |
The first typewriters had keyboards of the alphabet, like computer keyboards today. |
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What can a computer do and what is a computer. |
A computer can store huge amounts of information. A computer is a electronic machine that can storehuge amounts of information. |
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What are cell phones and how do they send signals. |
Cell phones are wireless telephones. They use air waves to send signals. |
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How did the telegraph send messages over a long distance. |
It worked like a typewriter. You typed a message. It was sent along a wire to a telegraph receiver. |
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How did the telegraph work long distance? |
transmitting electrical signals over a wire laid between stations. |
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