Uhh. No I can't give you more information unless you tell me what you're tallking about exactly, or what he said. If he just said "3d system", I have no idea.
I believe that they were terming it as 3D to describe the type of components used. I.e. a high end graphics card to deal with intensive 3D applications.
Unless they are referring to the new holographic hard drive technology which will in the future become the norm as the storage capacity density per unit area is vastly increased compared to standard HDD of today