(( pls to pretend she posts the pictures in the reply, dnw to upload them right now ))
The first is a laptop. It can go on a desk still but you can move it from place to place a lot easier. Most of them are not this big and rugged but they have options like this that would be more durable than the smaller ones.
The desktop computer has all the parts separate and once you set it up in a spot you'd want to keep it there. But we can probably find a super heavy duty keyboard for it for you and might be better for you to use.