Which of the following is not an output device of a computer?

(A) CRT Screen
(B) Keyboard
(C) Printer
(D) None of these

🧠 Explanation:

An item that is **not an output device** of a computer is one that does not present information to the user but instead may input data or serve another function. Output devices are hardware components like monitors, printers, and speakers that display, print, or produce information from the computer. Identifying which device does not perform these functions helps understand the distinction between input and output devices, which is essential for grasping computer operations and hardware roles.