Hard to say it's worth upgrading. Memory may not be upgradeable. And well just Moore's law. XP if fine. CPUs now are all now multi-core, but the OS has to be able to handle it.
You can get a PC from just a couple of years ago that is superior in many ways, usually for much less than trying to upgrade memory in a 12 year old computer.
But maybe you can use it for offloading some processing from another PC
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You can get a PC from just a couple of years ago that is superior in many ways, usually for much less than trying to upgrade memory in a 12 year old computer.
But maybe you can use it for offloading some processing from another PC
[This invalid link has been removed]