High Quality Content by WIKIPEDIA articles! Dashboard is an application for Apple`s Mac OS X operating systems, used for hosting mini-applications known as widgets. First introduced in Tiger, it is a semi-transparent layer that is invisible to the user unless activated by clicking its icon in the Dock. Alternatively, the user can invoke Dashboard by moving the cursor into a preassigned hot corner, by pressing a hot key, or mouse button, any of which can be set to the user`s preference.