Where Can I Ask a VERY Elementary Question?

Hi,

 

Please forgive my ignorance if my question and I don't belong here.

 

I would like to install  one of these products:

(For a moment after pasting an image in the box above I was seeing what I wanted to paste.  But then the image changed to something different and not at all relevant.  So here is a URL for the material I am referencing: 

 

I have two questions:  1) which product is the better choice if I'll be using hardware with a GPU?  Or do they both require a GPU?  And 2) Can I install whatever my choice is on  more then one of my computers without paying for it again?  

 

Thanks very much for any guidance.  Bob 

 

 

Edu SOLIDWORKS