Re-installing Sims 2- Updates?

[rockjammer101]

Hello, my name is Adam.

I enjoy the Sims 2 greatly and am awaiting the arrival of Sims 3.
Now, I used to have it installed onto my computer, however sense it took up large amounts of space and made my computer run slow, I needed to uninstall. I noticed it would say low Virtual memory, and I know a bit about computers but not much and need to know what exactly I need to upgrade, the video card, ram, etc.

Sorry if this is a bit off topic for this forum, but the upgrades are for Sims 2, and I have forgotten some of it and know others who play know a thing or two of how to make Sims 2 run more smoothly.

Thank you!