Final answer:
The correct answer to the question is 'mouse', which is a pointing device used to move the cursor and interact with elements on a computer screen.
Step-by-step explanation:
A mouse is a pointing device that moves the cursor on the screen, allowing fast, precise cursor positioning. On most personal computers, the mouse is used as a primary input device, and it can have several forms: a traditional wired mouse, a wireless mouse, or even a trackball. The use of a mouse makes navigating through computer applications and the internet a more efficient and user-friendly experience.