Def 1: The creation, storage and manipulation of images and drawings using a digital computer is called computer graphics.
Def 2: Computer graphics are graphics created using computers and more generally the representation and manipulation of image data by a computer with help from specialized software and hardware.
Computer contains two components.
· Computer hardware
Computer hardware contains the graphics workstations, graphic input devices and graphic output devices.
· Computer Software
Computer software contains the Operating systems which controls the basic operations, software packages used for geometric modeling like solid modeling, wire frame modeling and drafting, Application software which includes the program for design analysis, several application-specific software packages.
The major use of computer graphics is in design processes like engineering and architectural systems. Now almost all the products are computer designed. It is generally referred as CAD (Computer Aided Design) . It is mainly used in the design of buildings, automobiles, aircraft, computers, textiles, etc.
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