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ANALOG AND DIGITAL NOTES

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Discussion on, DIGITAL AND ANALOG DATA, FDM  COMPARE BETWEEN DIGITAL AND ANALOG DATA DIGITAL DATA ANALOG DATA Digital data refers to information which is discrete. Analog data refers to information which is continuous. Example: A digital clock that reports the hours and the minutes will change suddenly from 10:10 to 10:11. Example: An analog clock that has hour, minute, and second hands are continuous. Digital data take on discrete values. Data are stored in computer memory in the form of 0's and 1's. They can be converted to a digital signal or modulated into an analog signal for transmission across a medium. Analog data such as sound take on continuous values. When someone speaks, an analog wave is created in air. This can be captured by a microphone and converted to an analog signal and this analog signal is then converted to digital signal. end...   WHAT IS MODULATION ...