A keyboard event is an action that occurs when a user interacts with a computer keyboard. This can include pressing a key down, releasing a key, or holding a key down for a period of time. These events are essential for applications to respond to user input, allowing for tasks like typing text, navigating menus, or executing commands. In programming, keyboard events are often captured and handled using languages like JavaScript. Developers can listen for specific keys or combinations of keys, enabling features such as shortcuts or custom controls in software applications. This interaction enhances user experience by making applications more responsive and intuitive.