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Questions and Answers
Which of the following describes the nature of analog data?
Which of the following describes the nature of analog data?
- Analog data can have only a limited number of defined values.
- Analog data take on continuous values, such as the sounds made by a human voice. (correct)
- Analog data take on discrete values, such as data stored in computer memory.
- Analog data changes without a repeated pattern or cycle.
What is the main difference between analog and digital signals?
What is the main difference between analog and digital signals?
- Analog signals are patterns of signals repeated over identical periods of time, while digital signals have only a few discrete values.
- Analog signals have infinitely many levels of intensity over a period of time, while digital signals change without a repeated pattern or cycle. (correct)
- Analog signals can have only a limited number of defined values, while digital signals take on continuous values.
- Analog signals change without a repeated pattern or cycle, while digital signals have a limited number of defined values.
What type of data are stored in computer memory?
What type of data are stored in computer memory?
- Analog data
- Non-periodic data
- Analog and digital data
- Digital data (correct)
What is the fundamental form of a periodic analog signal?
What is the fundamental form of a periodic analog signal?
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How can analog data be transmitted across a medium?
How can analog data be transmitted across a medium?
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Study Notes
Analog Data
- Analog data is continuous, varying in intensity or amplitude, and can take on any value within a range.
Analog vs Digital Signals
- The main difference between analog and digital signals is that analog signals are continuous while digital signals are discrete and take on distinct values.
Data Storage
- Computer memory stores digital data.
Periodic Analog Signals
- The fundamental form of a periodic analog signal is a sinusoidal wave.
Analog Data Transmission
- Analog data can be transmitted across a medium through modulation, such as amplitude modulation (AM) or frequency modulation (FM).
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