An analog-to-digital converter is a device that can be used with a microphone to take in an audio wave (an analog signal). The device then converts the information to a digitized form that can be stored and used by a computer. The image below shows the steps in the digitization process. The question mark in the image represents how the data is stored after it is processed by the analog-to-digital converter.

Question

How is the information from the audio wave stored after it is processed by the analog-to-digital converter?
A.
It is stored as a table of ones and twos because it was converted to a radio wave.
B.
It is stored as images because it was converted to mathematical equations.
C.
It is stored as graphs because it was converted to base ten data.
D.
It is stored as a series of ones and zeros because it was converted to binary data.

Answer 1

The correct answer is:

D. It is stored as a series of ones and zeros because it was converted to binary data.

When an analog-to-digital converter processes an audio wave, it converts the continuous analog signal into a discrete digital signal, which is then represented in binary form (ones and zeros) for storage and processing by a computer.