Answer:
1) device with which you can control the movement of the pointer to select items on a display screen.
ex : joysticks, touchpads
2) The Track Point center button can be used to scroll through documents or Web pages.
Hard copy is a printed document file. Soft copy is a non printed document file.
Hard copy does not require an electronic interface like computers,but Soft copy requires an electronic interface like computers or mobiles etc to read and display.
3) an output device which prints a hard copy of the electronic data that is stored in the computer or any other devices.
Impact printers form images and characters by striking a mechanism such as a print hammer or wheel against an inked ribbon, leaving an image on paper. Non-impact printers form characters and images without direct physical contact between the printing mechanism and the paper.
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