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Fiber Optics
Part 1 of Paper
....led transmission of light through hair-thin glass fibers."
[ Less expensive than copper cables
[ Raw material is silica sand
[ Less expensive to maintain If damaged, restoration time is faster
(although more users are affected)
[ Backbone to the Information Superhighway
Information (data and voice) is tr.... Part 2 of Paper
.... off at very high speeds.
Computers at the transmitting end convert data or voice into "bits" of
information. The information is then sent through the fiber by the presence, or
lack, of light. So, all of the data is sent light pulses. Computers on the
receiving end convert the light back into data or voice, so it can be used.
All of this seems to be a very "modern" concept, and the technology we use
is. The concept though, was the idea of Alexander Graham Bell in the late 1800's.
He ju.... |
| Number of words: 1222 - Approximate pages: 5 |
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