Double-clicking is a computer action that involves quickly pressing a mouse button twice in succession. This action is commonly used to open files, folders, or applications on a computer. When you double-click an icon on your desktop, for example, it typically launches the associated program or document. The double-click action is primarily associated with graphical user interfaces (GUIs) found in operating systems like Windows and macOS. It helps users navigate their devices more efficiently by allowing quick access to various functions without needing to right-click or use keyboard shortcuts.