Motivations for data communications

1. What are the motivations for data communications?

2. What three disciplines are involved in data communications?

3. Which piece of a data communications system handles analog input?

4. Which piece of a data communications system prevents transmission errors from corrupting data?

1. What are the conceptual pieces of a data communications system?

2. Name a common household device that emits an aperiodic signal.

3. Give three examples of information sources other than computers.

4. State and describe the four fundamental characteristics of a sine wave.

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