Which of the following is an input device?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Keyboard.
A keyboard is an input device. It allows users to input data, commands, and text into a computer or other electronic systems. Each key press sends a signal to the device, which interprets it as a specific character or function. Keyboards are essential for text-based communication and command execution in computing.