What component of a computer does BIOS primarily help to initialize?

BIOS, which stands for Basic Input/Output System, is essential for the initial boot-up process of a computer. When you turn on your machine, BIOS is the first piece of software that runs. Its primary role includes initializing and testing the system hardware components before handing over control to the operating system.

While it is true that BIOS initializes several hardware components, its function is not limited to just one specific component. It performs the Power-On Self Test (POST) to check the health and functionality of the CPU, RAM, storage devices, and other peripheral devices, ensuring everything is working correctly before the OS starts.

This comprehensive initialization process encompasses all hardware components in the system, confirming that they are ready and functioning properly for the operating system to utilize. Therefore, the correct understanding of BIOS's role indicates that it helps to initialize all hardware components, which includes CPU, RAM, storage devices, and peripherals, making "all hardware components" the most accurate choice.