Which component is NOT considered an input device?

The correct choice identifies a component that does not serve as an input device. A monitor is classified as an output device because it displays information and visuals from the computer, allowing users to see the results of their activities. In contrast, input devices such as a mouse, scanner, and keyboard are used to send data and commands to the computer. The mouse enables users to interact with the graphical interface, the scanner converts physical documents into digital format, and the keyboard allows users to input text and other data. Understanding the distinction between input and output devices is crucial for comprehending how computers process information and interact with users.