Components are the functional pieces of every GameObject. Components contain properties which you can edit to define the behavior of a GameObject. For more information on the relationship between components and GameObjects, see GameObjects.
To view a list of the components attached to a GameObject in the Inspector window, select your GameObject in either the Hierarchy window or the Scene window.
A GameObject can have many components, but every GameObject has a Transform component. This is because the Transform dictates the GameObject’s location, rotation, and scale. To create an empty GameObject, select GameObject > Create Empty. When you select the new GameObject, the Inspector displays the Transform component with default values.