Upgradation What is the maximum upgrade that can be done for dot station ? Equivalent to pentium III or pentium IV ? Also let me know the processor speed and RAM that can be maximum upgraded..

All your answers in once convenient page:
http://en.wikipedia.org/wiki/List_of_Intel_Pentium_microprocessors

You cannot upgrade from a Pentium III to a Pentium 4 without replacing the motherboard.

its speed increses in a particular rato.Its grow in each month in a aspect ratio.

Athlon 1.3GHz cpu
Celeron 300A processor.

These are a few and courtesy of Tech Enclave here is a link about a place in China that produced a CPU called Godson II which is the equvalent of a Pentium III as well.

http://www.techenclave.com/cpu-mobo-corner/chinese-made-cpu-chip-equivalent-pentium-2595.html

Hope this helps.

I'm not sure about the CPU upgrade--these generally are hard to determine and this is complicated by the fact that Pentium III processors are no longer made, I would say that you could go on e-Bay and find one there (should be cheap) and try it.
An easier way to get a little more speed is to bring the memory up to the maximum the laptop will hold. (In your case 512 MB). That and set the paging file to allow the system to determine the size needed (Unless your system has Linux installed). Any further upgrades on an older system like yours are usually just a waste of money.

This can be useful http://www.microtekintl.com/MainSite/Processors/Pentium3.htm

Current processor should be a Pentium III 450 MHz.
As far as I know, the standard RAM os 64 MB and maximum RAM is 512 MB. Even a memory upgrade will cost you around 80$.

I would honestly suggest to forget a processor upgrade because it will cost you a lot of money. Probably more than a new laptop.
Sorry...

check the mother board processor socket number first, if you find a processor that is compatible to it then you can definitely upgrade it!

you could only upgrade the processor and RAM in this condition i.e.

you can only change your an upgraded p-III processor like 1.0 GHz, 1.1 GHz or 1.3GHz and
upgrade the RAM by changing to 256 in each slot.

that is all what u can do with ur pc

Try updating the bios.