Question : In a computer system, which device is functionally opposite of a keyboard?
Option 1: Trackball
Option 2: Joystick
Option 3: Mouse
Option 4: Printer
Correct Answer: Printer
Solution : The correct option is the Printer.
A printer and a keyboard function in the exact opposite ways. A keyboard is the most widely used input device , which consists of a row of keys resembling those on a typewriter and is used to enter data into a computer. A printer , on the other hand, is an output device that can print text and graphics.
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