Q. The trend in computer systems is towards the use of graphical user interfaces (GUIs). In theseoperating systems, a track ball is described as (Solved)
1. a roller ball which moves the cursor.
2. a pen-shaped device which allows data to be entered through the CRT screen.
3. a figure which resembles a familiar office device.
4. an outdated input device.
5. None of these
- a. a roller ball which moves the cursor.