What is the difference between analog and digital?
by 
Narasimham
ANSWERS: 2
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To put it simply? Digital has a green circuit board inside. . Ask me if you need something more precise.
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Digital is precise, meaning that a state of a piece of digital information, at it's base level is either on or off. This makes it ideal for data processing and computing. (techgeek note, this is established usually by the voltage through a transistor, typically 5+ volts DC is considered "on", 0.7 or less "off". Microprocessors have hundreds of millions of transistors) Analog is an 'organic' state, where on and off are relative (analog means many variations on the same thing). Pure analog information is best described as higher or lower, which makes it a poor system for computing, but an excellent system for many other things, such as musical tones and variable gauges (like needle gauges - tachometers, speedometers, etc).
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