Computer Bootloaders

Learn all about bootloaders, including how to write your own in assembly code. It gets pretty low level, but does a good job about teaching memory addressing and other basics, so that anyone should be able to get the theory behind it.

However, if you want to work on the "Write your Own Bootloader" part, you may want to read Assembly Basics first, followed by Assembly Tutorial before attempting to write a bootloader.

Overall, its a great article if you want to learn a little bit more about what goes on behind the scenes on your computer.