If you research this you find that this is editable and not something Windows finds out about the machine. That is, there is something in the registry you change to make it call it whatever you want.
I got a really good deal a Dell XPS M1330 for $549 i saw the price and i immediately bought it there is not such laptops for that price i went home really happy. However when I click start and then I click computer and then i check "System Properties" Everything seems right:
The one that saids:
Model: Ispiron M1330. Why if my laptop is a XPS WHY DOES THE MODEL NAME APPEARS TO BE AN "Inspiron"