Analog vs. Digital
Analog (A) Europeans say “analogue” Analog data
represented by some form of continuous signal / representation
Examples: sound waves records VHS
Digital (D) Digital data
represented by discrete quantities (not continuous)
Examples CDs DVDs
A/D Conversion
Sampling
A/D Applications Sound recordings CD storage
1. Given sound wave2. Take samples3. Convert samples to binary4. Store onto CD
Temperature sensing computer storage1. Temperature changes continuously2. Take samples3. Convert samples (values) to binary4. Store on the computer
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