Question

How does the acceleration setting improve the user experience with a touchpad?

a.

It makes the touchpad bigger, so you have to move your finger less.

b.

It decreases the sensitivity of the touchpad, requiring more effort to move the cursor.

c.

It varies the ratio of pad distance to screen distance with the speed of movement.

d.

It makes the touchpad less sensitive to accidental touches.

Posted under Human Computer Interaction

Answer: (c).It varies the ratio of pad distance to screen distance with the speed of movement. Explanation:The acceleration setting improves the user experience with a touchpad by varying the ratio of pad distance to screen distance with the speed of movement. If the finger moves slowly over the pad, the pad movements map to small distances on the screen. If the finger is moving quickly, the same distance on the touchpad moves the cursor a long distance. This setting is used to enhance the 'feel' of the device and can also be found in other indirect positioning devices like the mouse.

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