Kernel/OS (EOS) or Firmware? What is the difference?

Kernel,OS,EOS, Firmware, all are familiar terms to Nintendo player.Do you really know the difference between them.

Two terms should be bear on mind here: Internal firmware and kernel/OS. 

The internal firmware is the internal software of your SuperCard itself, stored specially in your SuperCard, whereas EOS is the kernel/OS, the software that your SuperCard runs from the microSD.

Image that your microSD is the hard-disk  You put Windows (the OS) on your harddisk on your computer, and when your computer turns on it runs Windows. And from Windows it runs the rest of your programs, like games. If the microSD is your harddisk, and the EOS is your Windows, then the Firmware is the stuff your computer runs before it loads Windows.

If you've never seen it before restart your computer right now, and look at what it does after it turns itself on again. It will always load something before Windows. And that "something" is in the internal 'memory' of your computer, just like your Firmware is in the internal memory of your SuperCard.

Sound quite simple, doesn't it?