COMPUTER GRAPHICS or INTERACTIVE COMPUTER GRAPHICS
Computer Graphics is defined as creation, storage, and manipulation of pictures and drawings by means of a digital computer.
It is an extremely effective medium for communication between people and computers
Computer graphics studies the manipulation of visual and geometric information using computational techniques
It focuses on the mathematical and computational foundations of image generation and processing rather than purely aesthetic issues
In Interactive Computer Graphics (ICG) the user interacts with the compute and comprises the following important functions:
Modeling, which is concerned with the description of an object in terms of its spatial coordinates, lines, areas, edges, surfaces, and volume
Storage, which is concerned with the storage of the model in the memory of the computer
Manipulation, which is used in the construction of the model from basic primitives in combination with Boolean algebra
Viewing, in the case the computer is used to look at the model from a specific angle and presents on its screen what it sees.
Typical Hardware setup of a Graphic System
Work Station: A workstation comprises of the devices that allow the user to create and design objects, using both graphic and non-graphic instructions and data. A Stand alone workstation refers to CAD workstations that can process data and output information independent of other computer systems or workstations. It includes its own software, hardware, and peripherals.