Hi, well, I have tried looking for the general specification of the laptop itself, and so far, upgrading it, in my opinion, is left to the memory alone.
Not sure if this is the specs of your laptop:
Processor: 700mHz Pentium3
Memory: 128MB (upradable to 384MB)
Graphics: ATi Rage Mobility M 4MB SDRam
Display: 12.1" TFT
Optical Drive: DVD-Rom
However, depending on your operating system, the max the laptop can go is, unfortunately, 384MB, and that's only 3/4 gig of ram and I'm not sure of how much a stick of 256MB laptop SDRam may cost (or you could find it from some old unwanted laptops). Sufficient for Windows ME and various flavours of Linux, but on Windows XP, it's going to crawl in slower pace (though marginally faster than with 128MB) as the bearable requirement of XP (to compensate the slower processor) is 512MB.
Apologies if I hadn't given the answer you're looking for.
I am having an old laptop IBM X21.It is very very slow laptop having 128mb RAM and Pentium 3.So is it possible to upgrade it like changing its processor,ram and graphic card.