The UGC NET Computer Science (Computer Graphics)

 The UGC NET Computer Science (Computer Graphics)

Introduction

In this article, you will know and learn about some important terminologies, and MCQs frequently asked in the UGC NET Computer Science (Computer Graphics).

Graphics

·       The first computer Graphics design system was developed by Evan Sutherland.

·       Graphics are visual images or designs on some surface, such as a wall, canvas screen, paper, or stone, to inform, illustrate or entertain.

·       The seven basic elements of Graphics design are line, shape, color, texture type, space, and image.

·       Different types of Graphics design are web design, UI and interactive design, advertising and marketing design, motion Graphics and animations, packaging design, game design, illustration, publication, and typographic design.

· Graphics include maps, photographs, designs and patterns, family trees, diagrams, architectural or engineering blueprints, bar charts and pie charts, typography, schematics, line art, and flowcharts.

·       Graphics packages are used to create letterheads, and images, enable us to produce simple logos, provide several tools for drawing shapes and complex drawings, and are used to produce cover pages for magazines, newspapers, and journals.

·         Computer Graphics makes something look good, it organizes information to help deliver a message in the most impactful way possible.

Computer Graphics

·       Computer Graphics is a core technology in digital photography, film, video games, digital art, cell phones, and computer displays.

·       Computer Graphics deals with generating images and art with the aid of computers.

·       The areas in which Computer Graphics is used include cartography, visualization of computer simulations, medical diagnostics, drafting and computer design, preparation of publications, special effects in movies, and computer games.

·       Computer Graphics are used for creating and developing videos and computer programs, science modeling, catalog design, and commercial art.

·       Computer Graphics elements include animation, interaction, rendering, and modeling.

·       Some common examples of Computer Graphics are Logo, Corel Draw, Autocad, 3-D Studio, Core, GKS (Graphics Kernel System), PHIGS, and CAM (Computer Graphics Metafile).

·       Two different categories of Computer Graphics are Raster Graphics and vector Graphics.

Advantages of Computer Graphics

Some Advantages of Computer Graphics are:

• Improving the realism of visual content
• Enabling the creation of 3-D models and animations
• Improving the accessibility of visual content

Random scan

·       Random-scan systems or monitors are also known as vector displays, stroke-writing displays, or calligraphic displays.

·       Random scan is a technique in which the display is constructed through an electron beam, which is directed only to the specific areas of the screen where the image is to be sketched or drawn.

·       The resolution of the random scan display is high, and it delivers smooth image drawing.

·       Random scan system requires less memory.

·       Random scan has a lower refresh rate of about 30 to 60 times per second.

·       Random scan system uses a mathematical function for an image or picture rendering.

·       Random scan system is suitable for applications requiring polygon drawings.

·       A common example of a random scan is a pen plotter.

·       CRT is a Random scan monitor that uses electron beams.

Raster scan

·       Raster scan has a higher refresh rate about 60 to 80 times per second.

·       Raster scan uses pixels.

·       Raster scan is suitable for creating realistic scenes.