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Issue:

Technology

 

Written by:

Jessica M

 

Date added:

December 25, 2011

 

Level:

University

 

Grade:

A

 

No of pages / words:

19 / 5314

 

Was viewed:

4773 times

 

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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...
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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...
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