i have HP a1640n model of PC. I readed few days ago that is somehow posibile to put mac OS on PC computer. I dont know about mac , so can someone give me some advice about this.
I guess that my question is funny???

I don't think you can do that since Apple has their own hardware for their comps so installing their OS might not work on your system.

I dug around for you on the net and i came across this it might answer some questions ( http://www.windowsdevcenter.com/pub/a/wind.../18/PearPC.html )

Thanks bro, im going to read that now. I would like to try that windows little bit longer so im going to see what i can do with my machine.

To answer the question you can it, but it goes a against the EULA of Apple. Their called Hackintosh(s) and the hacking project to create Hackintosh(s), is OSx86 http://en.wikipedia.org/wiki/OSx86. Basically the bootable dvd installer is changed so it can run on non-apple intel chip boards and AMD with some emulation of the EFI that Apple uses that used instead of the "old legacy BIOS firmware interface." Lifehacker mentioned how to run leopard on a non-apple machine, here is the url http://lifehacker.com/software/hack-attack...-800-321913.php in case you want to look at it.