What is the primary function of a keyboard?

The primary function of a keyboard is to input text and commands. This device serves as a primary means through which users interact with a computer or other digital devices by entering alphanumeric data and executing commands. Each key on the keyboard corresponds to a specific character, number, or command, allowing for efficient data entry and control.

The input capabilities of the keyboard are crucial for a wide range of applications, from word processing to programming, enabling users to communicate their intentions to the computer system. The keyboard converts the physical actions of typing into digital signals that the computer can interpret and process, facilitating a seamless user experience.

Other choices, though relevant to computing, do not reflect the primary role of a keyboard. For example, while a monitor displays information sent from the computer, it does not relate to the primary input function of the keyboard. Similarly, output sound is associated more with speakers or audio devices, and printing documents involves a printer. Each of these functions pertains to the output of information or results rather than the input aspect provided by a keyboard.