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The Telephone
Beginning of paper
itself is a rather simple appliance. A microphone, called
the transmitter, and an earphone, called the receiver, are contained in the
handset. The microphone converts speech into its direct electrical analog, which
is transmitted as an electrical signal; the earphone converts received
electrical signals back to sound. The switch hook determines w ....
Middle of paper
....represents a time in history
when the world was changing incredible fast and much of that change was made
possible by the the telephone. Without the telephone, progress would have been
much slower and people might not have been so receptive to change. We owe a
great deal to Alexander Graham Bell, the inventor of the telephone, for his
invention h.... |
| Word count: 317 |
Page count: 2 |
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