Who can help, what literature will help you understand the BIOS (in its old form) and UEFI?

Question

BIOS

Hello friends, who will help, do you need literature that will help you get good theoretical knowledge on BIOS (in its old form) and UEFI? which I can then put into practice.

Answer 1

In what practice? There is the practice of low-level coding, and there is the practice of flipping switches to adjust.