The most widely used input devices are monitors, printers, and keyboards.
查看答案
Combination keys perform a function when held down in combination with another key.
A. 对
B. 错
An optical mouse uses light in order to detect movement.
A. 对
B. 错
A touch screen is classified as a special type of scanning device.
A. 对
B. 错
A stylus uses pressure to draw images on a screen.
A. 对
B. 错
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