A windowing system is a software component that manages the display of multiple graphical user interface (GUI) windows on a computer screen. It allows users to interact with different applications simultaneously by providing a framework for creating, moving, resizing, and closing windows. This system is essential for multitasking, enabling users to switch between tasks easily. In a windowing system, each window can represent a different application or document, and they can overlap or be arranged side by side. Common examples of windowing systems include those used in operating systems like Microsoft Windows, macOS, and Linux. These systems enhance user experience by organizing information visually and efficiently.