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| | Communication-Related Inventors and Inventions: EnchantedLearning.com |
 | | Morse used a dots-and-spaces code for the letters of the alphabet and the numbers (Morse Code was later improved to use dots, dashes and spaces: for example E is dot, T is dash, A is dot-dash, N is dash-dot, O is dash-dash-dash, I is dot-dot, S is dot-dot-dot, etc.). |
 | | Records, used to record sound, were invented in 1877 by Thomas Alva Edison, who invented the first machine to record and play back sounds (the phonograph or record player). |
 | | Sholes and Glidden sold the rights to their invention to the investor James Densmore, who eventually had the machine commercially manufactured. |
| www.enchantedlearning.com /inventors/communication.shtml (3979 words) |
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