Answer :

Final answer:

The OS bootloader, located in the boot drive's Master Boot Record (MBR) or GUID Partition Table (GPT), is responsible for loading the operating system's kernel at startup.

Explanation:

At the beginning of the boot drive is the OS bootloader, which loads the first program file of the OS. The bootloader is a small piece of software that manages the load process of the operating system. When you start your computer, the BIOS or UEFI firmware initiates the bootloader, which resides in the first sector of the boot drive, often referred to as the Master Boot Record (MBR) or GUID Partition Table (GPT) for newer systems.

The bootloader's primary function is to load and execute the main operating system kernel, which then takes over the boot process and eventually initializes all system software and hardware.

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