Graphical Kernel System
<graphics, standard> (GKS) The widely recognised standard ANSI
X3.124 for graphical input/output.
GKS is worked on by the ISO
It provides applications programmers with standard methods of creating, manipulating, and displaying or printing computer graphics on different types of computer graphics output devices.
It provides an abstraction to save programmers from dealing with the detailed capabilities and interfaces of specific hardware.
GKS defines a basic two-dimensional graphics system with: uniform input and output primitives; a uniform interface to and from a GKS metafile for storing and transferring graphics information.
It supports a wide range of graphics output devices including such as printers, plotters, vector graphics
devices, storage tubes, refresh displays, raster displays, and microfilm recorders.