MotoBIOS & MotOS: The personal computer

[Matte]

Best tutorial I've found yet:
A tutorial on the FAT file system

Also readworthy:
NTFS.com FAT32 FAT16 File Allocation Table.
File Allocation Table - Wikipedia, the free encyclopedia


Also, Let me google that for you

[neos300]

Thanks, those tutorials will help alot.

[Fizyk]

I know the problem with the "where to start".
I started with the BIOS and a basic API. Mostly used by the BIOS, so the so-called API was in reality a part of the BIOS... lol

I, for example, didn't even plan an OS at first, from what I remember I just wanted to make something I could use to program the CPU faster. Writing all keyboard/screen functions from scratch every time I wanted to make a program wasn't really fun, so I put them together in some sort of a BIOS. FAT was just an addition I put in later, when I figured out how to do it and not kill myself with it Then, when I had FAT and all I/O functions, I could make an OS, so I did it