Which of the following is NOT an output device?

Which of the following is NOT an output device?

• A. Monitor
• B. Headphones
• C. Keyboard
• D. Printer

Answer: (C)

Output devices present information from the computer to you. A monitor displays visual data, so it’s an output device. Headphones output audio from the computer, another form of output. A printer converts digital information into a physical paper copy, which is also an output. A keyboard, by contrast, is used to input data into the computer. It sends your keystrokes and commands for processing, rather than delivering information to you. That distinction makes the keyboard not an output device. (Note: some devices can handle both input and output in different ways, but a keyboard is purely for input.)

Output devices present information from the computer to you. A monitor displays visual data, so it’s an output device. Headphones output audio from the computer, another form of output. A printer converts digital information into a physical paper copy, which is also an output.

A keyboard, by contrast, is used to input data into the computer. It sends your keystrokes and commands for processing, rather than delivering information to you. That distinction makes the keyboard not an output device. (Note: some devices can handle both input and output in different ways, but a keyboard is purely for input.)