Computer Graphics Researched via: Student Name: Nathalie Gresseau Date: 4-29-10.

Computer GraphicsResearched via:

http://wikipedia.org

Student Name: Nathalie GresseauDate: 4-29-10

What is Computer Graphics?

The term computer graphics includes almost everything on computers that is not text or sound.

Computer graphics can be described as drawing pictures on computers.

Computer graphics are graphics created using computers and, more generally, the representation and manipulation of image data by acomputer.

The History of Computer Graphics?

The advance in computer graphics was to come from one MIT student, Ivan Sutherland. In 1961 Sutherland created another computer drawing program called Sketchpad. Using a light pen, Sketchpad allowed one to draw simple shapes on the computer screen, save them and even recall them later. The light pen itself had a small photoelectric cell in its tip. This cell emitted an electronic pulse whenever it was placed in front of a computer screen and the screen's electron gun fired directly at it. By simply timing the electronic pulse with the current location of the electron gun, it was easy to pinpoint exactly where the pen was on the screen at any given moment. Once that was determined, the computer could then draw a cursor at that location.

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What is 2D Computer Graphics?

2D computer graphics is the computer-based generation of digital images mostly from two-dimensional models.

2D computer graphics are mainly used in applications that were originally developed upon traditional printing and drawing technologies, such as typography, cartography, technical drawing,advertising, etc..

What is Computer Animation?

The art of creating moving images with the use of computers.

To create the illusion of movement, an image is displayed on the computer screen and repeatedly replaced by a new image that is similar to the previous image, but advanced slightly in the time domain

What is Pixel?

A pixel is a single point in a raster image . The pixel is the smallest addressable screen element; it is the smallest unit of picture that can be controlled.

Each pixel has its own address.

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