the only thing different is the size man - ok, i agree, its not a Personal Computer, but it's got all the features like a normal computer - I've got WiFi, i've got a keyboard, Stylus (mouse ), i've got software on it like the computer one (adobe, WM Player, Yahoo Mail, MS Office....i have even installed Heroes III of Might and Magic (my favourite game) on it.
so thats why i'm counting it as a computer. In your logic, you dont have to consider the laptop as a PC as well
I have my modern desktop, and my old desktop. I have my new laptop and old laptop which are both used. I also have another desktop which is sporadically used.
My sister has a macbook and older desktop, both of which are used.
My parents share a desktop.
We have a x86 PC acting as a gateway as well.
So that's 9 computers that are used. Another pile of them sitting around and doing nothing as well.