You'd think not because desktop PCs, ultra compact PCs (NUC, Brix) by definition don't come with a screen either - screens are add ons. I think the 9" rule basi

You'd think not because desktop PCs, ultra compact PCs (NUC, Brix) by definition don't come with a screen either - screens are add ons. I think the 9" rule basically applied to mobile devices only, i.e. tablets and smartphones.