Question

the process in which input voltage signals are changed to values the cpu can understand is called...
a) analog to digital conversion
b) digital to analog conversion
c) analog to analog conversion
d) digital to digital to conversion

Explanation:

CPUs only understand digital (binary) signals. Input voltage signals are analog, and converting these analog signals to digital values the CPU can interpret is defined as Analog to Digital conversion. The other options describe reverse or irrelevant conversion processes.

Answer:

A) Analog to Digital conversion