I have a acer aspire 1710. I wanted to know if it is possible to
change my ht-Pentium 4 mobile processor to a Dual-core?

I would also like to know if its possible to change my graphics card
to a desktop graphics card because it is a desktop replacement. My
reason that I say this is because I had it fixed by a professional and
he told me he could "drop a 500gig hard drive in there."