Explanation:

- During the boot process, a specific component looks for the system files to initiate the operating system.

- CD: A compact disc that may contain data or audio files but is not responsible for boot processes.

- BIOS: The Basic Input/Output System is firmware that initializes hardware and finds and loads the operating system. It's crucial during the boot process.

- CPU: The Central Processing Unit executes instructions but does not search for system files.

- DVD: A digital versatile disc similar to a CD but with larger capacity. It may contain install files but doesn't initiate the boot process.