It is a system, on which I was working for about week... (4 or 5 hours per day) Because I am Assembly n00b
Three commands, for now, later I will maybe add more.
BTW, it's my first try to write an operating system.

CiastOS webpage: http://ciastos.x10.mx
Available in two languages (click the american flag for english)

Lawl, should try it on an IBM PC-XT.

Finally! A real Custom OS project and not just a stupid themeing idea for a copy of retail Windows...

There's also FZ/OS...

good job! for a first try pretty good

Thank you
I will create a simple IDE for nasm in VB.net and will continue my work.

Working on something similar.

Lol, seems everybody's doing their own OS now

Nice work anyway

It's alot more satisfaction to write own, than modify MS one.

Indeed it is!

Update arrived. Now with disk image. It is really nothing to test, but if someone really wants:
http://www.megaupload.com/?d=DUSYA1G8

Cool, i will try it out on my own computer when i'll return to Poland (Here i have no real possibility, unless we're talking about installing an pc emulator on my phone xD)

Yeah, emulator for java xD
This release has no bugs, I think (at least, I haven't discovered anything yet). In next release I'm going to do a activity bar at top of screen, so bugs expected.

Yes, if activity bar is what i think it is you're gonna have to probably re-write scrolling and stuff (if you were doing it the easy way till now)

What easy way? I didn't understand.
BTW: I just realised, that your system does not have shutdown command. If you want an APM system shutdown version just PM me.

Just an idea, but maybe you 2 can work together?

Well... I don't know what fzajac will say, my OS is just 720 lines of one kernel file written in Assembly language.

Looks good. Tried on a VM and it ran nice. Tried it (Just for fun) in my 286 and it froze

At which stage it froze?

It loaded to the Command Prompt: Then when you run Help, it froze

Did you try other commands? It seems I need to make it compatible with older software (cool! Another challenge! ).

Nope didn't really try

I think, I know what can cause the problem.

Well, there are two ways to print text on the screen by using INT 10h. If you set AH=0Eh (the teletype output, or so it is called on Wikipedia), everything is done automatically; i mean the scrolling, and moving cursor. It's quick and easy if you're just scrolling the whole screen. However if you want to, for example, exclude one line (or more) from scrolling you'd have to manually print a character (AH=09h), move the cursor (AH=02h) and scroll the screen (AH=06h).

Thanks but first i will try to figure it out on my own