Mumbai University > Computer Engineering > sem 4> Computer Organization and Architecture

Marks: 6M

Year: May16

Joystick:

• A stick or bat-shaped device anchored at the bottom.
• Variable in size, smaller ones being operated by fingers, larger ones requiring the whole hand.
• Variable in cursor direction movement method, force joysticks respond to pressure, moveable ones respond to movement. -Variable in degree of movement allowed, from horizontal-vertical only to continuous.

Advantages

• Direct relationship between hand and pointer movement in terms of direction.
• Does not obscure vision of screen.
• Does not require additional desk space (if mounted on keyboard).

Disadvantages

• Movement is indirect, in a plane different from the screen.
• Indirect relationship between hand and pointer movement in terms of speed and distance.
• Requires a degree of eye-hand coordination.
• Requires different hand movements.
• May be slow and inaccurate.
• May be fatiguing to use over extended time.