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Next: Images Up: Input Devices and Storage Previous: Text and Static Data


Graphics are usually constructed by the composition of primitive objects such as lines, polygons, circles, curves and arcs. Graphics are usually generated by a graphics editor program (e.g. Freehand) or automatically by a program (e.g. Postscript usually generated this way). Graphics are usually editable or revisable (unlike Images).

Graphics input devices include: keyboard (for text and cursor control), mouse, trackball or graphics tablet.

Graphics files may adhere to a graphics standard (OpenGL, PHIGS, GKS) Text may need to stored also. Graphics files usually store the primitive assembly and do not take up a very high overhead.

Dave Marshall