Early computer graphics started as a research and application field that was
the domain of only a few experts, for instance in the area of computer aided
design (CAD). Nowadays, any person using a personal computer benefits from
the developments in computer graphics. Operating systems and application
programs with graphical user interfaces (GUIs) belong to the simplest applications
of computer graphics. Visualisation techniques, ranging from simple
histograms to dynamic 3D animations showing changes of winds or currents
over time, use computer graphics in the same manner as popular computer
games. Even those who do not use a personal computer might see the results of
computer graphics on TV or in cinemas where parts of scenes or even a whole
movie might be produced by computer graphics techniques.