3D Cursor
The idea of a cursor being used as a marker or insertion point for new data or transformations, such as rotation, can be extended to a 3D modeling environment. Blender, for instance, uses a 3D cursor to determine where future operations are to take place.
A real-life cursor such as this was featured as a holographic character in the science fiction TV series Automan.
Read more about this topic: Cursor (computers)