As such, the CPU switches to the system firmware, which contains instructions for the boot process.
However, at this stage of the boot-up process, there are no instructions loaded into the memory.
When you turn on your computer, it powers on the CPU, the key computer component that processes commands or instructions. Understanding this will help clear up some concepts. Let us get started! How a Computer Boots?īefore diving deep into what UEFI and Legacy Boot modes are, let us discuss how a computer boots. This tutorial will discuss how your computer boots, what UEFI and Legacy are, and help you understand why one is better than the other at specific instances.
Knowing the meaning of the acronyms and what they stand for is not enough you also have to know what they do and how they work. If you have ever experimented with Operating Systems, hardware, and overclocking, you’ve probably heard of UEFI and Legacy.
