Concept:An output device sends processed data from the computer to the user in a human-readable form.
Explanation:Plotters are output devices because they print high-quality graphics and drawings on paper.
Speakers are output devices because they produce sound or audio from the computer.
Projectors are output devices because they display the computer screen onto a larger surface.
A webcam is different from all of these.
A webcam captures video and images and sends them into the computer for processing.
So a webcam is an input device, not an output device.
Therefore, the device that is not an output device is the webcam.
Answer:D. Webcams