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Questions and Answers
What is a common use of presentation graphics?
What is a common use of presentation graphics?
Which device is considered a logical input device?
Which device is considered a logical input device?
In which area is computer graphics used for visualization?
In which area is computer graphics used for visualization?
Which of the following is NOT a type of output device?
Which of the following is NOT a type of output device?
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What application of computer graphics is used in the development of educational resources?
What application of computer graphics is used in the development of educational resources?
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Which of the following best describes 2-D output devices?
Which of the following best describes 2-D output devices?
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Which industry commonly employs computer graphics for advertising?
Which industry commonly employs computer graphics for advertising?
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Which of the following is an example of a physical input device?
Which of the following is an example of a physical input device?
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What is the primary characteristic of raster graphics?
What is the primary characteristic of raster graphics?
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Which application of computer graphics can assist in educational training?
Which application of computer graphics can assist in educational training?
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In which area is vector graphics primarily utilized?
In which area is vector graphics primarily utilized?
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How do town planners benefit from computer graphics?
How do town planners benefit from computer graphics?
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Which of the following is NOT a characteristic of raster graphics?
Which of the following is NOT a characteristic of raster graphics?
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What role do computer graphics play in biology?
What role do computer graphics play in biology?
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Which factor distinguishes vector graphics from raster graphics?
Which factor distinguishes vector graphics from raster graphics?
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What is a potential application of computer graphics in architecture?
What is a potential application of computer graphics in architecture?
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What is one of the primary reasons computer graphics are used in machine drawing?
What is one of the primary reasons computer graphics are used in machine drawing?
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In which application is computer graphics used for creating an automated environment?
In which application is computer graphics used for creating an automated environment?
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How does computer graphics assist in data visualization?
How does computer graphics assist in data visualization?
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Which of the following is NOT mentioned as an application of computer graphics?
Which of the following is NOT mentioned as an application of computer graphics?
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What role does image processing play in the context of computer graphics?
What role does image processing play in the context of computer graphics?
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Why is visualization increasingly important in advanced technologies?
Why is visualization increasingly important in advanced technologies?
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Which field utilizes computer graphics for educational purposes?
Which field utilizes computer graphics for educational purposes?
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In which of the following applications is computer graphics NOT typically employed?
In which of the following applications is computer graphics NOT typically employed?
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What does the term 'graphics primitive' refer to?
What does the term 'graphics primitive' refer to?
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Which of the following describes a pixel in the context of raster displays?
Which of the following describes a pixel in the context of raster displays?
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How is a polygon defined in the context of computer graphics?
How is a polygon defined in the context of computer graphics?
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What role does a frame buffer play in computer graphics?
What role does a frame buffer play in computer graphics?
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What is the function of the display processor?
What is the function of the display processor?
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Which statement is true regarding the display control in graphics programming?
Which statement is true regarding the display control in graphics programming?
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What is the relationship between resolution and dot size in CRT displays?
What is the relationship between resolution and dot size in CRT displays?
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What defines line generation in computer graphics?
What defines line generation in computer graphics?
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What is the primary purpose of using graphic software?
What is the primary purpose of using graphic software?
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What are polygons primarily used for in computer graphics?
What are polygons primarily used for in computer graphics?
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Which statement best describes a viewport in computer graphics?
Which statement best describes a viewport in computer graphics?
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Which of the following is NOT a major application of computer graphics?
Which of the following is NOT a major application of computer graphics?
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Graphic communications can encompass which of the following?
Graphic communications can encompass which of the following?
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What role do computer-generated models play in education?
What role do computer-generated models play in education?
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Which tools are considered part of computer art applications?
Which tools are considered part of computer art applications?
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What is a primary benefit of computer-aided drawing?
What is a primary benefit of computer-aided drawing?
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Study Notes
Defining Computer Graphics
- Computer graphics are any sketch or drawing that represents meaningful information.
- Computer graphics create or manipulate images using pixels on a computer.
- The graphics area is the part of an application where users create and modify drawings.
- Examples of types of computer graphics include raster and vector graphics:
- Raster Graphics: Uses pixels to create an image (also known as a bitmap image).
- Vector Graphics: Uses mathematical formulas to define shapes, lines, and objects.
Comparing Raster and Vector Graphics
- Raster graphics are made up of pixels.
- Vector graphics use mathematical formulas to define shapes.
- Raster graphics are good for photographs and realistic images.
- Vector graphics are good for illustrations, logos, and designs.
Applications of Computer Graphics
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Education and Training: Computer graphics are used to visualize complex concepts, creating educational aids and training simulations.
- Examples: Flight simulators, models of physical and economic systems, population trends.
- Biology: Molecular biologists use computer graphics to visualize molecules and understand their structure.
- Maps: Town planners and transportation engineers use computer-generated maps to visualize data and make informed decisions.
- Architecture: Architects use computer graphics to explore design solutions and test various ideas.
- Presentations : Presentation graphics are used to summarize information with visual elements like bar charts, line graphs, and pie charts.
- Art: Computer graphics are used to create commercial art, including television and advertising commercials, as well as fine art.
- Entertainment: Computer graphics are used to create motion pictures, music videos, and television shows.
Computer Graphics Systems
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Input Devices: Tools used to interact with the system. Examples include:
- Physical: Keyboard, mouse, tablet, touchscreen, camera.
- Logical: String, locator, pick, choice, valuator, stroke.
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Output Devices: How the computer presents information to the user. Examples include:
- CRT display, LED display, LCD display, printer, plotter, speaker, robot arm.
- 2-D Output: Either vector devices (draw line segments, like a plotter) or raster devices (display pixels).
Graphics Primitives
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Graphics Primitive: A basic building block used to create complex images. Examples include:
- Pixel: A single point of light on a raster display.
- Line: A straight line segment, a fundamental element in creating images.
- Polygon: A closed area bounded by straight or curved lines, used for creating shapes and objects.
- Display File: A set of uncorrelated data forming an image.
- Frame Buffer: Memory that stores a complete set of image data, displayed to the screen.
- Display Control: Allows viewing images from different angles and magnifications.
- Line Generation: Algorithms used to create lines on a screen.
- Graphics Software: Programs designed to manipulate visual images on a computer.
- Points: Used as building blocks for more complex shapes.
- Polygons: Used to create 3D-looking images.
- Text Primitive: Allows adding text to images at any position in 2-D or 3-D space.
- Windowing and Clipping: Controls what part of an image is visible on the screen.
- Viewport: A rectangular viewing region on a display.
Graphic Communication
- Graphic communication encompasses the creative and production process for any visual communication. This can include mediums such as billboards, magazines, websites, and videos.
Major Applications of Computer Graphics
- Computer Art: Used to create fine art and commercial art with animation packages and paint programs. Examples include cartoon drawing, painting, and logo design.
- Computer Aided Drawing: Used in designing buildings, automobiles, and aircraft, providing detailed and accurate drawings.
- Education: Computer-generated models are used to teach concepts in an engaging and accessible way.
- Training: Specialized systems like simulators are created to train individuals in specific skills.
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Visualization: Used to visualize complex data and processes, helping to gain insights and understand information.
- Examples: Data visualization for business analysis, scientific research, and medical imaging.
- Image Processing: Used to edit and refine images, improving their clarity and usability.
- Machine Drawing: Used in designing and creating machine parts, ensuring precision and clarity for safe manufacturing.
- Graphical User Interface: Used to create user-friendly interface designs with pictures, icons, menus, and graphical objects.
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Additional Applications:
- Entertainment: Used in movies, video games, and television shows.
- Medical Imaging: Generates scans like body and brain scans.
- Graphical Interface: Creates automated environments.
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Description
This quiz covers the fundamentals of computer graphics, including the definitions, types, and applications of raster and vector graphics. Participants will explore the differences between these two graphic types and their respective uses in various fields. Test your understanding of how computer graphics enhance education and training.
