The term computer graphics includes almost everything on computers that is not text or sound. Today almost every computer can do some graphics, and people have even come to expect to control their computer through icons and pictures rather than just by typing. Computer graphics started with the display of data on hard copy plotters and cathode ray tube (CRT). It has grown to include the creation, storage, and manipulation of models and images of objects using algorithms and data structures.

Definition :-

•The computer graphics is one of the most effective and commonly used way to communicate the processed information to the user.It displays the information in the form of graphics objects such as pictures, charts, graphs and diagrams instead of simple text.

•The Computer Graphics is rendering (Service) tool for generation of images and manipulation of images.

•Computer graphics is the technology that deals with designs and pictures on computers.

•Computer graphics is the sub part of Compute Science which studies about manipulating visual content, Synthesizing digitally.

Computer Graphics made up of 4 Components :-

• Image: an Image is a Combination of pixels, a Visual Representation of Something.

• Models: 3d Representation of Something is Called Model.

• Rendering: Rendering is the process of generating an image from a 2D or 3D model or models in what collectively could be called a scene file by means of computer programs. Also, the results of such a model can be called a rendering.

• Animation: Techniques of creating illusive movements using Successive Images is called Animation.

Representative Uses of Computer Graphics :-

• User interfaces: GUI, etc.

• Business, science and technology: histograms, bar and pie charts, etc.

• Office automation and electronic publishing: text , tables, graphs, hypermedia systems, etc.

• Computer-aided design (CAD): structures of building, automobile bodies, etc.

• Simulation and animation for scientific visualization and entertainment: flight simulation,games, movies, virtual reality, etc.

• Art and commerce: terminals in public places such as museums, etc.

• Cartography: map making.