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Unit 2: Graphics Systems

assigned a texture coordinate (which in the 2d case is also known as a UV coordinate) either Notes
via explicit assignment or by procedural definition.
Vacuum Tube: Vacuum tubes are thus used for rectification, amplification, switching, or similar
processing or creation of electrical signals. All modern day tubes consist of a sealed container
with a vacuum inside, and essentially rely on thermionic emission of electrons from a hot
filament or hot cathode.

Visualization: Visualization is any technique for creating images, diagrams, or animations to
communicate a message. Visualization through visual imagery has been an effective way to
communicate both abstract and concrete ideas since the dawn of man.

2.10 Review Questions

1. Explain the various fundamental concepts and principles in computer graphics.

2. What is the computer graphics system and also explain the some component?
3. What is the visualization?
4. Explain the video display devices.

5. What are the cathode-ray-tubes? And basic operation of a cathode-ray-tubes.
6. Explain the vector scan/random scan display. And write the advantages and disadvantages
raster scan systems.
7. What is the difference between raster scan and random scan technique?
8. What is the resolution?
9. Explain the colour displays? How do we see colour display.

10. What is the frame buffer?
Answers for Self Assessment Questions

1. (b) 2. (a) 3. (d) 4. (b) 5. (b)
6. (b) 7. (c) 8. (a) 9. (b) 10. (a)
11. (c) 12. (c) 13. (a) 14. (a) 15. (b)

2.11 Further Readings

Advances in Computer Graphics Hardware II, by Alphonsus A. M. Kuijk
Interactive Computer Graphics, by Angel

http://books.google.co.in/books?id=btLtyXQsJIC&pg=PA65&dq=graphics+
system+in+computer+science&hl

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