63. In a computer system, which device is functionally opposite of a Key-board? A.Mouse B.Trackball C.Printer D.Joystick E.None of the above
Option C Solution: Printer is functionally Opposite of a Keyboard. A keyboard is the most common input device that comprises a set of typewriter-like keys used to enter data into a computer. On the contrary, a printer is an output device capable of printing text and graphics on a paper.
