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Questions and Answers
What are the three common types of touch screen technologies discussed in the text?
What are the three common types of touch screen technologies discussed in the text?
Capacitive, infrared, resistive
How does a surface capacitive touch screen determine the point of touch?
How does a surface capacitive touch screen determine the point of touch?
By measuring the decrease in capacitance at the corners of the screen.
What type of touch screens allow multi-touch capabilities?
What type of touch screens allow multi-touch capabilities?
Projective capacitive touch screens
What is the advantage of capacitive touch screens over resistive screens in terms of image clarity?
What is the advantage of capacitive touch screens over resistive screens in terms of image clarity?
What is the disadvantage of surface capacitive screens in terms of usability?
What is the disadvantage of surface capacitive screens in terms of usability?
How do infrared touch screens detect touch input?
How do infrared touch screens detect touch input?
What technology is used to build up an image of a solid object through a series of very thin 'slices' in CT scanners?
What technology is used to build up an image of a solid object through a series of very thin 'slices' in CT scanners?
How are the 'slices' that make up a representation of the 3D solid object in CT scanners built up?
How are the 'slices' that make up a representation of the 3D solid object in CT scanners built up?
What is stored as a digital image in the computer memory when using CT scanners?
What is stored as a digital image in the computer memory when using CT scanners?
What is represented digitally in the computer memory when using CT scanners?
What is represented digitally in the computer memory when using CT scanners?
What are the different names that tomographic scanners can have depending on how the image is formed?
What are the different names that tomographic scanners can have depending on how the image is formed?
What does a touch screen allow the user to do?
What does a touch screen allow the user to do?
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