What is the most commonly used input device in computing?

The most commonly used input device in computing is the keyboard. This device allows users to input text, commands, and control various applications and functions on their computers. The keyboard provides a tactile and direct means of entering information, making it essential for tasks such as typing documents, programming, and conducting online research.

While the mouse is widely used for navigation and user interface interactions, the keyboard remains the primary tool for data entry. Users often rely on keyboards for complex tasks that require extensive typing or command input, reinforcing its status as a fundamental component of computing. Additionally, the keyboard's layout and structure are designed to facilitate rapid and efficient input, catering to the needs of users across various platforms and applications.

Other input devices like touchscreens, although increasingly popular, especially in mobile devices, still often rely on a keyboard input for comprehensive functionality. Scanners are specialized devices used to convert physical documents to digital form but do not compete in terms of everyday general-use input. Overall, the keyboard's versatility and necessity for various forms of input solidify its position as the most common input device in computing.