Which of these is not an input device? mouse monitor scanner keyboard
The Correct Answer and Explanation is :
The device that is not an input device among the options provided is the monitor. A monitor is an output device, while the mouse, scanner, and keyboard are all classified as input devices.
Explanation
Input Devices:
Input devices are hardware components that allow users to send data and commands to a computer. They enable users to interact with the computer system, entering information that can be processed. The three devices mentioned—mouse, scanner, and keyboard—serve different purposes in this category:
- Mouse: A mouse is a pointing device that detects two-dimensional motion relative to a surface. It allows users to interact with graphical user interfaces (GUIs) by moving a cursor on the screen, clicking icons, and executing commands.
- Keyboard: The keyboard is a crucial input device featuring keys that correspond to letters, numbers, and symbols. It enables users to input text and control commands directly. With various combinations of keys (such as Ctrl, Alt, and Shift), it allows for advanced commands and shortcuts.
- Scanner: A scanner captures physical documents and converts them into digital format. It enables users to input printed images or text into the computer, which can then be edited, stored, or shared electronically. Scanners are widely used for digitizing photographs, documents, and other media.
Output Devices:
On the other hand, output devices are hardware components that convey information from a computer to the user. The primary role of output devices is to present data processed by the computer. The monitor, in this context, fits this definition as it displays visual output, such as text, images, and videos, allowing users to perceive the information generated by the computer.
In summary, the distinction between input and output devices is crucial for understanding how computers operate and interact with users. The monitor is essential for viewing information but does not facilitate input, making it the correct answer in this context.