Monday, January 26, 2009

What is a Digital Signal?????

A digital signal is a binary coded pulse that represents pictures, data, sound, and is a computer or communication system.

An analog signal is a continuously varying system. How does an analog signal become a digital signal?????
  • A Digitizer changes analog signals into digital or electronic signals. This was first developed by RAND Corporation in 1964.
To convert speech a microphone is used to break speech into voltages and the digitzer converts voltages into digital code-creating words on a computer screen.

Binary code is mathematical, a series of 0s and 1s and is considered universal.

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