Originally Posted by Cornel
Well, you're right but from your point of view, I guess the user interface for a notebook (and any piece of hardware for that matter) would be a screwdriver or a hammer
Actually, no. Keyboard, touchpad, external peripherals (keyboards, mice, tablets, etc), etc are the user interface(s). The user interface(s) to a notebook itself (as with any machine) is/are generally other or included hardware. Interface(s) to software (operating systems, applications, BIOS, etc) can exist in two primary forms: character based (command line interface mentioned above, or CLI) and graphical based (afformentioned GUI). Ergo, notebooks have no GUI - not even one like this
as it is still software (the interface would be the auxiliary touchpad display).
I suppose I should apologize as well. I tend to use correct and accurate terminology in any explanation, and expect the same of others.