Variants of the Mouse

• Trackballs
• Trackpads
• Integrated Pointed Devices         

Trackballs:

• A trackball is like a mouse turned upside-down.
• Use your thumb to move the exposed ball and your fingers to press the buttons.

Trackpads:

• A trackpad is a touch-sensitive pad that provides the same functionality as a mouse.
• To use a a trackpad, we glide our finger across its surface.
• Trackpads provide a set of buttons that function like mouse buttons.

Integrated Pointed Devices:

• An integrated pointing device is a small joystick built into the keyboard.
• To use an integrated pointing device,we move the joystick.
• These devices provide a set of buttons that function like mouse buttons.