Question

A programmer is designing a computer program for a weather application that will use a variety of data sources. They want to understand which data sources are analog so that they can think carefully about the process of converting the analog data into digital data. Which of these data sources is analog?

A. The predicted inches of snowfall on a winter day for each city in New York
B. Two years of weekly high temperatures for Houston, Texas
C. Thirty seconds of sounds from a thunderstorm in Miami, Florida
D. The daily time of sunrise and sunset in Detroit, Michigan

Answer 1

C. Thirty seconds of sounds from a thunderstorm in Miami, Florida is an analog data source because sound is an analog signal that is continuous in time and can take on any value. It must be converted into a digital format for a computer program to process it. The other options, inches of snowfall, temperatures, and daily times, are all discrete data sources that can be represented by digital values directly.

Step-by-step explanation: