Hello, I'm new to the forum, so excuse my "Newness"

I have a Acer Aspire One netbook that's a little over a year and half old.
I replaced it 6 months ago by building a rig, so the netbook isn't doing anything.

It's slow, and laggy, but I was wondering if I DBAN it, would it be able to run backtrack 5 as its main OS?
I know its not designed for that, so what would be the problems?

I realize this question might make no sense, like I said, I'm new to this.