Pointing devices

Question 1

What are the most common examples of pointing devices?

Answer 1

The mouse and the trackerball

Question 2

Where are Trackerballs on the device and how are they moved?

Answer 2

They are on top of the device and it is moved by the user

Question 3

What is an advantage of a trackerball?

Answer 3

The device itself stays still, therefore requiring less desk space