The solid state hard drive uses chips to store the information which is accessible much faster for several reasons. First, it doesn't need to wait for the information to spin by. Second, it doesn't have to wait for the rotor to check the index, and last, it doesn't have to wait for the rotor position to line up with the information giving you the information you requested.

TIP! If you really just want all kinds of fast, buy 2 solid state drives and set them up as a raid.
The first thing I will tell you when you are getting a solid state drive is to make sure you find any reviews available. Because not all solid state drives work like standard drives, missing this step can cause you a great deal of headaches.
Second, because this technology is still relatively new, make
sure you
use a vendor you know and trust
to buy
your parts from.
This
way, in the event of an RMA or if you get a drive that's dead when you
get it, you have no worries getting it replaced.
Third, check the manufacturers website and see if there are any incompatibilities with the software you plan to use. Specifically if you run Windows 7, make sure this drive will run with it.