Discussion
Which of the following is not a point-and-draw device?
Answer: A
Correct answer: Keypad
A keypad has discrete keys and enters characters or digits; it cannot indicate an arbitrary position on the screen or trace a path, which is what point-and-draw means.
The other three all can. A mouse and a trackball report continuous movement, and a touch screen reports the position touched directly. Arrow keys move a cursor in fixed steps, which is why they serve as a poor substitute for a pointing device rather than as one.
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