Pointing devices & Functions

Pointing devices & Functions
Mouse : small handy device
Trackball : it is a variation of mouse
pointing Stick : it is pointing device like a pencil eraser
joystick : pointing vertical stick
Touch pad : we slide on its surface to move the cursor
Touch Screen : video display screen .
Light pen : light sensitive stylus
Digitizing / graphic tablets : Digitizing tablet convert drawings n photos into digital form.
Pen-based Systems : pen is used to input the data
Basics of Information Technology
Chapter No.1
ICS
PART 1