please help me
i have an old 386DX computer and it doesn't have even DOS it doesn't have anything on it at all
please tell me how to install on it an OS

newer OS than win95 wouldn't run on this comp
it has 4mb ram and its processor is 33mhz and a hdd with ~160mb
it has only a 3.5 floppy

(sorry if i have any mistakes but i don't know ENGLISH quite well)
I wouldn't even try Win95 on that.  Win 3.1, perhaps (yuck), or a very stripped down Linux.

It all depends on what you want to do with the PC, really.  What DO you want to do with this PC?DOS and Win3.1, but do you have any software to install? What is the point of this drill?i have plenty software for win 3.11
i even have the 3.11 DISKETTES and some dos diskettes but i dont know how to install dos
the diskettes just wont boot
the problem isnt from bios im 100% sure
i just need a good full dos instalation files which i will write to a diskette

There are 3 DOS diskettes for 6.0 to 6.2 if we are talking MS-DOS. You restart the machine with disk 1 in the floppy and install from there. You are positive the machine is 100% functional? What happens when you boot with disk 1 in there? What version of DOS is this? Is this a full install set or an upgrade set or what?Alternatively, try installing >FreeDOS<.when i boot the diskette this message appears:
"remove disks or any other media
 press any key to restart"
and when i remove the diskette and i press something it says that i must put a system diskette in
i tried with all msdos versions it DIDNT WORK always the same
if i just turn on the computer with no diskette in the floppy it again says that needs a system diskette
what is system diskette?
where could i find one which will work?

but the comp CAN boot a diskette i booted the ms dos start up diskette which is made by winXP and it started a dos but it couldnt do anything usefull and it didnt install any dos on the hddtry taking it to the shooting range....