OK, let's do this:

It isn't a hard drive. What's being driven, your mom? It definitely isn't a hard disk in most cases, either, because SSDs are so common.

It isn't a screen. What's being screened out? Is it a monitor? I don't know, is it? Are you monitoring things? If not, then it isn't.

It isn't a mouse. Mice have tails, and also are small living mammals with respiration and without buttons.

It isn't a touch pad. It is touched, but it's also stroked and tapped, so calling it merely a touch pad is inaccurate.

My point, of course, is that language is purely convention, and trying to nitpick all of those conventions quickly leaves us with nothing. There's polysemy and semantic drift and as long as there isn't confusion there also isn't a problem.