Important short questions and answers of graphics and multimedia

I've decided to provide some short questions and answers which may help students in university level. This course is usually attached in CSE or computer science. These questions and answers of computer graphics and multimedia helps students to do well in written and viva examination of National university, public universities and private universities.

Q1. What do you mean by computer graphics?
Ans. The branch of science and technology concerned with methods and techniques for converting data
to or from visual presentation using computers.

Q2. What do you mean by interactive computer Graphics?
Ans. Interactive computer Graphics like a website, it is only useful if it is browsed by a visitor and no
two visitors are exactly alike. It means the website must support the interaction of users with a variety
of skills, interests and end goals. Interactive computer graphics involves the user’s interaction.

Q3. What are the applications of computer graphics?
Ans. 

1. Computer Aided Design
2. Graphical User Interface
3. Entertainment
4. Simulation and Training
5. Education and Presentation
6. Computer Generated Art
7. Scientific Visualization
8. Image Processing
9. Virtual reality
10. Cartography
 

Q4. What do you mean by GUI?

Q5. What does it mean by RGB?

Q6. Define VDU?

Q7. Define persistence in terms of CRT Phosphorous.

Q8. What do you mean by an aspect ratio?

Q9.What are the different properties of phosphorus?

Q10. Differentiate raster and random scan displays.

Q11.Define refresh buffer/Frame buffer?

Q12. Define Pixel.

Q13. Define bitmap.

Q14. What do you mean by retracing? Define horizontal as well as vertical retracing.

Q15.What do you mean by interlacing?

Q16. What is a Beam penetration method?

Q17. Define shadow masking.

Q18. What are composite monitors?

Q19. What are advantages of DVST over CRT? Also list some disadvantages of DVST.

Q20. Differentiate emissive and non emissive displays.

Q21. List some 3D viewing devices.

Q22. What is the role of a video controller?

Q23. Define Graphics controller /Display controller/Display processor.

Q24. What do you mean by scan conversion?

Q25. Explain the merits and demerits of Penetration techniques.

Q26. Explain the merits and demerits of DVST.

Q27. Explain the merits and demerits of Plasma panel display.

Q28.What is the difference between impact and non-impact printers?

Q29. What is the features of Inkjet printers?

Q30.What are the advantages of laser printers?

Q31.What is the advantages of electrostatic plotters?

Q32.Consider three different raster systems with resolutions of 640 x 480, 1280 x 1024, and 2560 x
2048.

a) What size is frame buffer (in bytes) for each of these systems to store 12 bits per pixel?

b) How much storage (in bytes) is required for each system if 24 bits per pixel are to be stored?

Q33.Consider two raster systems with the resolutions of 640 x 480 and 1280 x 1024.
a) How many pixels could be accessed per second in each of these systems by a display controller
that refreshes the screen at a rate of 60 frames per second?

b) What is the access time per pixel in each system?

Q34. Consider a raster system with the resolution of 1024 x 768 pixels and the color palette
calls for 65,536 colors. What is the minimum amount of video RAM that the computer must
have to support the above-mentioned resolution and number of colors?

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