How does POST work with CMOS?
A) At startup POST obtains settings from CMOS to determine what hardware is supposed to be installed on the computer.
B) POST is used to configure CMOS.
C) POST is used to send messages between CMOS and the CPU.
D) POST acts as a backup of configuration settings stored in CMOS.

Question

Quizplus · Accepted Answer

POST (Power On Self Test) obtains settings from CMOS (Complementary Metal-Oxide-Semiconductor) at startup to determine what hardware is supposed to be installed on the computer. This information is crucial in order for the computer to operate correctly. Therefore, option A is the correct choice. Option B is incorrect because POST does not configure CMOS. Option C is also incorrect because POST does not send messages between CMOS and the CPU. Option D is incorrect because POST does not act as a backup of configuration settings stored in CMOS, but instead relies on it for initial hardware detection.

How Does POST Work with CMOS