hi, where can I start my studies for develop a OS? I will develop a OS in my project final course but a don't know whre I start. I'm actually reading the book "fundamentals of operating systems" of Silberschatz but this book is very very
theoretical.






ps.: sorry for my english, google traslator help me.

I would start by first researching a basic bootloader coded in assembly. This will get you familiar with your platform.

Some keywords: BIOS POST, bootsector, real mode, protected mode, interrupts.

Here is a very simple tutorial: http://www.osdever.net/tutorials/basickernel.php . you can also use the search function for tutorials here: http://osdever.net/search/ (links isn't working, i need to fix that).

Hope this helps you.

are you taking a class? don't they have a guide and some tools for you to use?

if you aren't taking a class, and you want a place to start, you can help me translate my stuff into portuguese, the Year 1 OS is the simplest OS ever!!! Its kinda like the tutorial that Brenden linked to but you'll get yourself into some real designing with the Year 1 OS...

BTW: I recommend the book "Operating Systems Design and Implementation" by Andrew S. Tanenbaum and Albert S Woodhull because its based on MINIX and it comes with a CD and all the sources...

I'm reading it right now, its a great book!

Maybe having a reference implementation (MINIX 3) is helpful but I'd still recommend Modern Operating Systems 3/e by the same author (2/e is a lot worse IMHO). Another good textbook that'll get you started is Operating Systems Concepts 8th ed.

Cheers,
Bogdam

If you have a book on the theory, then good. Read that. Also I followed this tutorial:
www.jamesmolloy.co.uk/tutorial_html

JamesM's tutorial has become more popular than bkerndev because it deals with more complex ideas (such as paging and VFS). He said he will rewrite them someday.

Yea, there are a few bugs in his work as well. I notified him about it some time last year, but he said he was planning on rewriting it after he got a break from working on the new OS he is doing.

The bugs may be good actually, so you don't just copy his code but write your own. Find the bugs

Success

// Jarvix

Good point. I read through everything before putting in code, so that I did know what was going on.