Hi guys! Now I had an idea on a simple DOS-like OS. I have seen quite some examples + the ones that were posted here. Now, i had that idea:
1)Well, pretty much make the simplest DOS clone i can with all basic command(and studying other peoples code as well)
2)Create GUI similar to SEAL (http://sealsystem.sourceforge.net/)

Now my problem isn't how exactly i will make the DOS-Clone, but the creation of the GUI. I was wondering about the language i should use. I'm familiar with C,Basic,Pascal and a bit of asm.

I want the OS to be a light as it could be, to run on low-end PCs(I will be testing it,on an old 286 if possible and on an Intel Pentium 100Mhz -lol-).
Another thing i want, is to make the graphics processing software based, so even if you don't have a graphic card to be able to run some stuff.Also that graphic routines would be used to create the windows,menus,etc of the OS.

Roughly the coding structure would be:
50%~ ASM (some thing coded in ASM would run faster for sure)
50%~ other language. Now regarding this, i would use only ASM, but it would be easier for me to use a higher level lang, like pascal(FPC to be more specific) and after a certain point i would like to convert the whole thing to ADM only to see if the speed difference is worth it.

Thanks for your time!

sorry, but... what for? hobby project, or do you await some real world usage? because for second possibility, you would have to think pretty differently and still you have minimal chance of success. (not to discourage you)

You will have some problems, with coding it like you say you want to.

1. First do not think that just because it's coded in asm, that it will be faster than higher level language, (smaller yes).
2. How are you going to run FPC progs on a 286 ?.

Good luck anyway.

Nah,i want it for personal coding only. To see how some stuff could be archieved. No real world coding lol.

And SOLAR OS
http://www.oby.ro/os/index.html

ASM + GUI

I had been looking for SolarOS since last time i checked their webpage was down
THanks guys.

AFAIK the page is up an running

I do check it every day from different locations...
... maybe you have a routing problem...

but anyway thanks for checking