In the context of computer software, a widget is a component of a graphical user interface (GUI) that displays information or provides a specific functionality. Widgets can range from simple elements like buttons, text boxes, and sliders to more complex components like calendars, search bars, and weather displays. They are used in various applications and websites to enhance user interaction and provide convenient access to features. In mobile devices, widgets often refer to self-contained applications that can be run on the home screen, offering quick access to frequently used functions and real-time information updates.