Q. What are stylus and light pen used for?

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Q. What are the downsides of using a stylus and a light pen?

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Q. What should be taken into account in screen designs for the use of direct devices like a stylus or light pen?

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Q. What is a digitizing tablet typically used for?

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Q. What are some problems associated with using digitizing tablets?

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Q. In which way can a digitizing tablet be adapted to provide 3D input?

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Q. What are eyegaze systems typically used for?

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Q. Which of the following is not a suitable task for eyegaze systems?

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Q. What are some challenges of using eyegaze systems?

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Q. What are cursor keys used for?

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Q. Why might cursor keys still be relevant despite advances in other input methods like the mouse or touch screens?

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Q. What devices often require discrete control?

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Q. What is a bitmap display?

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Q. What determines the color or intensity at each pixel in a bitmap display?

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Q. What is the purpose of anti-aliasing in bitmap displays?

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Q. What are two factors that are important to consider in the resolution of a bitmap screen?

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Q. What happens when a computer gives a screen less resolution than its maximum?

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Q. How does a cathode ray tube (CRT) display work?

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Q. How are grayscale images displayed on a black and white CRT screen?

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Q. Why do color CRT screens have a lower resolution than equivalent monochrome screens?

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