Question

What are some disadvantages of using touchscreens?

a.

Using the finger to point can leave greasy marks on the screen and is quite inaccurate. Lifting the arm to point to a vertical screen is very tiring, and the screen has to be within about a meter of the user to enable it to be reached.

b.

Touchscreens are not suitable for use in hostile environments.

c.

Touchscreens require a specialized pointing device.

d.

Touchscreens are slow and require separate hardware which can be damaged by dirt.

Posted under Human Computer Interaction

Answer: (a).Using the finger to point can leave greasy marks on the screen and is quite inaccurate. Lifting the arm to point to a vertical screen is very tiring, and the screen has to be within about a meter of the user to enable it to be reached. Explanation:While touchscreens are direct and intuitive, they also come with some drawbacks. These include potential greasy marks left by fingers, the inaccuracy of fingers for precise selections or drawing, the fatigue associated with lifting an arm to interact with a vertical screen, and the need for the screen to be within reaching distance, which might be too close for some users' comfort.

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