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