在UEFI BIOS的PEI（Pre-EFI Initialization）階段，系統需要初始化哪些關鍵硬體元件
Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: 在UEFI BIOS的PEI（Pre-EFI Initialization）階段，系統需要初始化哪些關鍵硬體元件 ### Response:  