The trend in computer systems is toward the use of graphical user interfaces (GUIs). In these operating systems, a trackball is described as____________

a pen-shaped device which allows data to be entered through the CRT screen

a roller ball which moves the cursor

a figure which resembles a familiar office device

The trend in computer systems is toward the use of graphical user inte

1.	The trend in computer systems is toward the use of graphical user interfaces (GUIs). In these operating systems, a trackball is described as____________
A.	an outdated input device
B.	a roller ball which moves the cursor
C.	a pen-shaped device which allows data to be entered through the CRT screen
D.	a figure which resembles a familiar office device
Answer» C. a pen-shaped device which allows data to be entered through the CRT screen