@nony - I disagree, I think the term does have unique application. As I’ve heard it used, it does apply specifically to tablet devices, whether you’re referring to IPad, Android, Nokia tablets or what have you.
So a smart phone does not technically qualify even though it is Internet capable. These devices are supposed to be larger than smart phones but smaller than laptops.
Of course, they are keyboard equipped as well and their microprocessor is faster than what you would find on a typical smart phone.