Because our electronics are constantly within our grubby grasp, they can get pretty gross. They are taken into public restrooms, handed to runny-nosed toddlers, passed around to share photos and pressed against sweaty skin in gyms. Repeated studies show what accumulates is germy nastiness worse than what is on the bottom of your shoe.
A good portion of the linked article describes ways to safely clean and disinfect your phone, tablet or laptop. Of course you can use the same techniques to clean treatment room computers and other electronic devices.