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What Is Isdn?
Essay specific features
Written by:
Jessica M
Date added:
December 25, 2011
Level:
University
Grade:
A
No of pages / words:
19 / 5314
Was viewed:
4944 times
Rating of current essay:
Essay content:
The voice was carried by modulating an electric current with a
waveform from a microphone. The receiving end would then vibrate a speaker coil
for the sound to travel back to the ear through the air. Most telephones today
still use this method. Computers, however, are digital machines. All information
stored on them is represented by a bit, representing a zero or a one...
displayed 300 characters
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Computers, however, are digital machines. All information
stored on them is represented by a bit, representing a zero or a one. Multiple
bits are used to represent characters, which then can represent words, numbers,
programs, etc. The analog signals are just varying voltages sent across the
wires over time...
displayed 300 characters
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