technicalsymposium

Free Advertisement Procedure and Free Email /Whatsapp Updates

Free Email Alerts-Subscribe Below


Enter your Email ID here:

Note:Login & Check Your Email Inbox and Activate Confirmation Link

Technical Round Materials-Computer Graphics-Free Download

Technical Round Materials-Computer Graphics-Free Download

1. What is scan conversion?
A major task of the display processor is digitizing a picture definition given in an application program into a set of pixel-intensity values for storage in the frame buffer. This digitization process is called scan conversion.

2. Write the properties of video display devices?
Properties of video display devices are persistence,resolution, and aspect ratio.

3. What is rasterization?
The process of determining the appropriate pixels for representing picture or graphics object is known as rasterization.

4. Define Computer graphics.
Computer graphics remains one of the most existing andrapidly growing computer fields. Computer graphics maybe defined as a pictorial representation or graphicalrepresentation of objects in a computer.

5. Name any four input devices?
Four input devices are keyboard, mouse, image scanners,and trackball.

6. Write the two techniques for producing color displays with a CRT?
Beam penetration method, shadow mask method.

7. What is vertical retrace of the electron beam?
In raster scan display, at the end of one frame, the electron beam returns to the left top corner of the screen to start the next frame.

8. Short notes on video controller?
Video controller is used to control the operation of the display device. A fixed area of the system is reserved for the frame buffer, and the video controller is given direct access to the frame buffer memory.

9. What is bitmap?
Some system has only one bit per pixel; the frame buffer is often referred to as bitmap.

10. Differentiate plasma panel display and thin film electro luminescent display?
In plasma panel display, the region between two glass plates is filled with neon gas. In thin film electro luminescent display, the region between two glasses plates are filled with phosphor, such as zinc sulphide doped with manganese.

11. What is resolution?
The maximum number of points that can be displayed without overlap on a CRT is referred to as the resolution.

12. What is horizontal retrace of the electron beam?
In raster scan display, the electron beam return to the left of the screen after refreshing each scan line, is called horizontal retrace of the electron beam.

13. What is filament?
In the CRT, heat is applied to the cathode by directing a current through a coil of wire, is called filament.

14. What is pixel map?
Some system has multiple bits per pixel, the frame buffer is often referred to as pixel map.

15. Write the types of clipping?
Point clipping, line clipping, area clipping, text clipping and curve clipping.

16. What is meant by scan code?
When a key is pressed on the keyboard, the keyboard controller places a code carry to the key pressed into a part of the memory called as the keyboard buffer. This code is called as the scan code.

17. List out the merits and demerits of Penetration techniques?
The merits and demerits of the Penetration techniques areas follows. It is an inexpensive technique. It has only four colors. The quality of the picture is not good when it is compared to other techniques. It can display color scans in monitors. Poor limitation etc.

18. List out the merits and demerits of DVST?
The merits and demerits of direct view storage tubes[DVST] are as follows. It has a flat screen. Refreshing of screen is not required. Selective or part erasing of screen is not possible. It has poor contrast Performance is inferior to the refresh CRT.

19. What do you mean by emissive and non-emissivedisplays?
The emissive display converts electrical energy into lightenergy. The plasma panels, thin film electro-luminescent displays are the examples.The Non-emissive are optical effects to convert the sunlightor light from any other source to graphic form. Liquid crystal display is an example

20. List out the merits and demerits of Plasma paneldisplay?
Merits. Refreshing is not required. Produce a very steady image free of Flicker. Less bulky than a CRT.Demerits. Poor resolution of up to 60 d.p.i. It requires complex addressing and wiring. It is costlier than CRT.

21. What is persistence?
The time it takes the emitted light from the screen to decay one tenth of its original intensity is called as persistence.

22. What is Aspect ratio?
The ratio of vertical points to the horizontal points necessary to produce length of lines in both directions of the screen is called the Aspect ratio. Usually the aspect ratio is ¾.

23. What is the difference between impact and non-impactprinters?
Impact printer press formed character faces against an inked ribbon on to the paper. A line printer and dot-matrix printer are examples.Non-impact printer and plotters use Laser techniques,inkjet sprays, Xerographic process, electrostatic method sand electrothermal methods to get images onto the papers. Examples are: Inkjet/Laser printers.

24. Define pixel?
Pixel is shortened forms of picture element. Each screen point is referred to as pixel or pixel.

25. What is frame buffer?
Picture definition is stored in a memory area called frame buffer or refresh buffer.

26. Where the video controller is used?
A special purpose processor, which is used to control the operation of the display device, is known as video controller or display controller.

27. What is run length encoding?
Run length encoding is a compression technique used to store the intensity values in the frame buffer, which store search scan line as a set of integer pairs. One number each pair indicates an intensity value, and second number specifies the number of adjacent pixels on the scan line that are to have that intensity value.

28. What is point in the computer graphics system?
The point is a most basic graphical element & is completely defined by a pair of user coordinates (x, y).

29. Write short notes on lines?
A line is of infinite extent can be defined by an angle of slope q and one point on the line P=P(x,y). This can also be defined as y=mx+C where C is the Y intercept.

30. Define Circle?
Circle is defined by its center xc, yc and its radius in user coordinate units. The equation of the circle is (x-xc) + (yyc)= r2.

31. What are the various attributes of a line?
The line type, width and color are the attributes of the line.The line type include solid line, dashed lines, and dotted lines.

32. What is anti aliasing?
The process of adjusting intensities of the pixels along the line to minimize the effect of aliasing is called anti aliasing.

33. What is Transformation?
Transformation is the process of introducing changes in the shape size and orientation of the object using scaling rotation reflection shearing & translation etc.

34. What is translation?
Translation is the process of changing the position of an object in a straight-line path from one coordinate location to another. Every point (x , y) in the object must under go a displacement to (x|,y|). the transformation is:x| = x + tx ; y| = y+ty

35. What is rotation?
A 2-D rotation is done by re positioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. The transformation is given by:X| = r cos (q + f) and Y| = r sin (q + f).

36. What is scaling?
A 2-D rotation is done by re positioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. The transformation is given by:X| = r cos (q + f) and Y| = r sin (q + f).

37. What is shearing?
The shearing transformation actually slants the object along the X direction or the Y direction as required. ie; this transformation slants the shape of an object along a required plane.

38. What is reflection?
The reflection is actually the transformation that produces a mirror image of an object. For this use some angles and lines of reflection.

39. What are the two classifications of shear transformation?
X shear, y shear

40. A point (4,3) is rotated counterclockwise by an angle of 45°. Find the rotation matrix and the resultant
point

41. Name any three font editing tools.
ResEdit, FONTo grapher

42. Differentiate serif and sans serif fonts.
Give one example Serif fonts has a little decoration at the end of the letter,but serif font has not. Times, new century schoolbook is the examples of serif fonts. Arial, optima are examples for sanserif fonts.

43. Distinguish between window port & view port?
A portion of a picture that is to be displayed by a window is known as window port. The display area of the part selected or the form in which the selected part is viewed is known as view port.

44. Define clipping?
Clipping is the method of cutting a graphics display to neatly fit a predefined graphics region or the view port.

45. What is the need of homogeneous coordinates?
To perform more than one transformation at a time, use homogeneous coordinates or matrixes. They reduce unwanted calculations intermediate steps saves time and memory and produce a sequence of transformations.

What is multimedia?

Multimedia is a technique that incorporates

  • text,
  • graphics,
  • sound,
  • animations and
  • video elements.

2.

What are the types of video compressions available?

There are two types of video compressions. They are:

  • Lossless compression: Retains the exact image throughout the compression.
  • Lossy compression: Provides a comparatively higher ratio of compression but results in some loss of quality.

3.

What is interactive multimedia?

Multimedia applications that allow users to actively participate instead of just sitting by as passive recipients of information are called interactive multimedia.

4.

Mention the major uses of Multimedia?

  • Multimedia is heavily used in the entertainment industry, especially to develop special effects in moves and animation for cartoon characters.
  • Multimedia games are a popular pastime and these are software programs available either as CD ROMs or online.
  • Some video games also use multimedia features.

? Question 1. What Is Scan Conversion?

Answer :

A major task of the display processor is digitizing a picture definition given in an application program into a set of pixel-intensity values for storage in the frame buffer. This digitization process is called scan conversion.

? Question 2. Write The Properties Of Video Display Devices?

Answer :

Properties of video display devices are persistence ,resolution, and aspect ratio.

? Question 3. What Is Rasterization?

Answer :

The process of determining the appropriate pixels for representing picture or graphics object is known as rasterization.

? Question 4. Define Computer Graphics.

Answer :

Computer graphics remains one of the most existing and rapidly growing computer fields. Computer graphics maybe defined as a pictorial representation or graphical representation of objects in a computer.

? Question 5. Name Any Four Input Devices?

Answer :

Four input devices are keyboard, mouse, image scanners, and trackball.

? Question 6. Write The Two Techniques For Producing Color Displays With A Crt?

Answer :

Beam penetration method, shadow mask method.

? Question 7. What Is Vertical Retrace Of The Electron Beam?

Answer :

In raster scan display, at the end of one frame, the electron beam returns to the left top corner of the screen to start the next frame.

? Question 8. Short Notes On Video Controller?

Answer :

Video controller is used to control the operation of the display device. A fixed area of the system is reserved for the frame buffer, and the video controller is given direct access to the frame buffer memory.

? Question 9. What Is Bitmap?

Answer :

Some system has only one bit per pixel; the frame buffer is often referred to as bitmap.

? Question 10. Differentiate Plasma Panel Display And Thin Film Electroluminescent Display?

Answer :

In plasma panel display, the region between two glass plates is filled with neon gas. In thin film electroluminescent display, the region between two glasses plates are filled with phosphor, such as zinc sulphide doped with manganese.

? Question 11. What Is Resolution?

Answer :

The maximum number of points that can be displayed without overlap on a CRT is referred to as the resolution.

? Question 12. What Is Horizontal Retrace Of The Electron Beam?

Answer :

In raster scan display, the electron beam return to the left of the screen after refreshing each scan line, is called horizontal retrace of the electron beam.

? Question 13. What Is Filament?

Answer :

In the CRT, heat is applied to the cathode by directing a current through a coil of wire, is called filament

? Question 14. What Is Pix Map?

Answer :

Some system has multiple bits per pixel, the frame buffer is often referred to as pix map.

? Question 15. Write The Types Of Clipping?

Answer :

Point clipping, line clipping, area clipping, text clipping and curve clipping.

? Question 16. What Is Meant By Scan Code?

Answer :

When a key is pressed on the keyboard, the keyboard controller places a code carry to the key pressed into a part of the memory called as the keyboard buffer. This code is called as the scan code.

? Question 17. List Out The Merits And Demerits Of Penetration Techniques?

Answer :

The merits and demerits of the Penetration techniques areas follows. It is an inexpensive technique. It has only four colors. The quality of the picture is not good when it is compared to other techniques. It can display color scans in monitors. Poor limitation etc.

? Question 18. List Out The Merits And Demerits Of Dvst?

Answer :

The merits and demerits of direct view storage tubes[DVST] are as follows. It has a flat screen. Refreshing of screen is not required. Selective or part erasing of screen is not possible. It has poor contrast Performance is inferior to the refresh CRT.

? Question 19. What Do You Mean By Emissive And Non-emissive Displays?

Answer :

The emissive display converts electrical energy into light energy. The plasma panels, thin film electro-luminescent displays are the examples. The Non-emissive are optical effects to convert the sunlight or light from any other source to graphic form. Liquid crystal display is an example.

? Question 20. List Out The Merits And Demerits Of Plasma Panel Display?

Answer :

Merits. Refreshing is not required. Produce a very steady image free of Flicker. Less bulky than a CRT. Demerits. Poor resolution of up to 60 d.p.i. It requires complex addressing and wiring. It is costlier than CRT.

? Question 21. What Is Persistence?

Answer :

The time it takes the emitted light from the screen to decay one tenth of its original intensity is called as persistence.

? Question 22. What Is Aspect Ratio?

Answer :

The ratio of vertical points to the horizontal points necessary to produce length of lines in both directions of the screen is called the Aspect ratio. Usually the aspect ratio is ¾.

? Question 23. What Is The Difference Between Impact And Non-impact Printers?

Answer :

Impact printer press formed character faces against an inked ribbon on to the paper. A line printer and dot-matrix printer are examples. on-impact printer and plotters use Laser techniques, inkjet sprays, Xerographic process, electrostatic methods and electro thermal methods to get images onto the papers. Examples are: Inkjet/Laser printers.

? Question 24. Define Pixel?

Answer :

Pixel is shortened forms of picture element. Each screen point is referred to as pixel or pel.

? Question 25. What Is Frame Buffer?

Answer :

Picture definition is stored in a memory area called frame buffer or refresh buffer.

? Question 26. Where The Video Controller Is Used?

Answer :

A special purpose processor, which is used to control the operation of the display device, is known as video controller or display controller.

? Question 27. What Is Run Length Encoding?

Answer :

Run length encoding is a compression technique used to store the intensity values in the frame buffer, which stores each scan line as a set of integer pairs. One number each pair indicates an intensity value, and second number specifies the number of adjacent pixels on the scan line that are to have that intensity value.

? Question 28. What Is Point In The Computer Graphics System?

Answer :

The point is a most basic graphical element & is completely defined by a pair of user coordinates (x, y).

? Question 29. Write Short Notes On Lines?

Answer :

A line is of infinite extent can be defined by an angle of slope q and one point on the line P=P(x,y). This can also be defined as y=mx+C where C is the Y intercept.

? Question 30. Define Circle?

Answer :

Circle is defined by its center xc, yc and its radius in user coordinate units. The equation of the circle is (x-xc) + (yyc)= r2.

? Question 31. What Are The Various Attributes Of A Line?

Answer :

The line type, width and color are the attributes of the line. The line type include solid line, dashed lines, and dotted lines.

? Question 32. What Is Ant Aliasing?

Answer :

The process of adjusting intensities of the pixels along the line to minimize the effect of aliasing is called ant aliasing.

? Question 33. What Is Transformation?

Answer :

Transformation is the process of introducing changes in the shape size and orientation of the object using scaling rotation reflection shearing & translation etc.

? Question 34. What Is Translation?

Answer :

Translation is the process of changing the position of an object in a straight-line path from one coordinate location to another. Every point (x , y) in the object must under go a displacement to (x|,y|). the transformation is:x| = x + tx ; y| = y+ty

? Question 35. What Is Rotation?

Answer :

A 2-D rotation is done by repositioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. The transformation is given by:X| = r cos (q + f) and Y| = r sin (q + f).

? Question 36. What Is Scaling?

Answer :

A 2-D rotation is done by repositioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. The transformation is given by:X| = r cos (q + f) and Y| = r sin (q + f).

? Question 37. What Is Shearing?

Answer :

The shearing transformation actually slants the object along the X direction or the Y direction as required. ie; this transformation slants the shape of an object along a required plane.

? Question 38. What Is Reflection?

Answer :

The reflection is actually the transformation that produces a mirror image of an object. For this use some angles and lines of reflection.

? Question 39. What Are The Two Classifications Of Shear Transformation?

Answer :

X shear, y shear.
A point (4,3) is rotated counterclockwise by an angle of45°. Find the rotation matrix and the resultant point

? Question 40. What Is Computer Graphics?

Answer :

The term computer graphics include almost every thing on computer that is not text or sound. It is an art of drawing pictures, lines. charts, etc. using computers with the help of programming. Or we can say that graphics is the representation and manipulation of image data by computer with the help from specialized software and hardware. Graphic designing is done using the various available softwares for computers which can produce the 3D images in the required shape and dimension. Computer graphics help us in getting the real display experiences.

? Question 41. Write The Important Applications Of Computer Graphic?

Answer :

Following are the applications of computer graphic
1. computer graphics is used in the field of computer aided design.
2. It is used to produce illustrations for reports or to generate slide for with projections.
3. Computer graphic methods are widely used in both fine are and commercial are applications.
4. The artist uses a combination of 3D modeling packages, texture mapping, drawing programs and CAD software.
5. In the field of entertainment CG methods are now commonly used in making motion pictures. music videos and television shows.
6. Computer-generated models of physical, financial and economic systems are often used as educational aids.

? Question 42. What Are The Raster And Vector Graphics?

Answer :

The Raster and Vector graphics can be explained as-
RASTER- In computer graphics image, or BITMAP, is a dot matrix data structure representing a generally rectangular grid of pixels or points of color, viewable via a monitor, paper, or other display medium. Raster image are stored in image files with varying formats.
VECTOR- Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon, which are all based on mathematical expressions, to represent image in computer graphics. “Vector”, in this context, implies more than a straight line.

? Question 43. Write The Difference Between Vector And Raster Graphics?

Answer :

Following are the differences between vector and raster graphics-
1. Raster or Bitmap images are resolution dependent because of this its not possible to increase or decrease their size without sacrificing on image quality.
While vector based image are not dependent on resolution. The size of vector image image can be increased or decreased without affecting image quality.
2. Raster or bitmap images are always rectangular in shape, Vector image, however, can have any shape.
3. Unlike raster image, vector image can’t be use for realistic images. This is because vector images are made up of solid color areas and mathematical gradients, so they can’t be used to show continuous tones of a colors in a natural photograph.

? Question 44. What Is Scaling In Computer Graphics?

Answer :

In computer graphic, image scaling is the process of resizing a digital image. scaling is a non-trivial process that involves a trade off between efficiency, smoothness and sharpness. With bitmap graphics, as the size of an image is reduced or enlarged, the pixels which comprise the image become increasingly visible, making the image appear “soft” if pixels are averaged, or jagged if not.

? Question 45. What Are The Hardware Devices Used For Computer Graphics?

Answer :

The hardwares devices used for the computer graphics are

Input Devices: Keyboard, Mouse, Data tablet, Scanner, Light pen, Touch screen, Joystick
Output Devices: Raster Devices- CRT, LCD, LED, Plasma screens, Printers,Vector Devices- Plotters, Oscilloscopes

? Question 46. What Are The Features Of Inkjet Printers?

Answer :

Features of inkjet printers are
1. They can print 2 to 4 pages per minute.
2. resolution is about 360d.p.i. Therefor better print quality is achieved.
3. The operating cost is very low. The only part that requires replacement is ink cartridge.
4. Four colors cyan, yellow, magenta, black are available.

? Question 47. What Are The Advantages Of Electrostatic Plotters?

Answer :

Following are the advantages of electrostatic plotters-
1. They are faster then pen plotters and very high quality printers.
2. Recent electrostatic plotters includes a scan conversion capability.
3. color electrostatic plotters are available. They make multiple passes over the paper to plot color picture.

? Question 48. Define Random And Raster Scan Displays?

Answer :

Random scan is a method in which display is made by electronic beam, which is directed only to the points or parts of the screen where picture is to be drawn.

The Raster scan system is a scanning technique in which the electron sweep from top to bottom and from left to right. The intensity is turned on or off to light and un-light the pixel.

Computer Graphics

Question 1. What is computer graphics?
Answer- The term computer graphics include almost every thing on computer that is not text or sound. It is an art of drawing pictures, lines. charts, etc. using computers with the help of programming. Or we can say that graphics is the representation and manipulation of image data by computer with the help from specialized software and hardware. Graphic designing is done using the various available softwares for computers which can produce the 3D images in the required shape and dimension. Computer graphics help us in getting the real display experiences.

Question 2. Write the important applications of computer graphic?
Answer- Following are the applications of computer graphic
1. computer graphics is used in the field of computer aided design.
2. It is used to produce illustrations for reports or to generate slide for with projections.
3. Computer graphic methods are widely used in both fine are and commercial are applications.
4. The artist uses a combination of 3D modeling packages, texture mapping, drawing programs and CAD software.
5. In the field of entertainment CG methods are now commonly used in making motion pictures. music videos and television shows.
6. Computer-generated models of physical, financial and economic systems are often used as educational aids.

Question-3 What are the raster and vector graphics?
Answer- The Raster and Vector graphics can be explained as-
RASTER- In computer graphics image, or BITMAP, is a dot matrix data structure representing a generally rectangular grid of pixels or points of color, viewable via a monitor, paper, or other display medium. Raster image are stored in image files with varying formats.

VECTOR- Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon, which are all based on mathematical expressions, to represent image in computer graphics. “Vector”, in this context, implies more than a straight line.

Question-4 Write the difference between vector and raster graphics?
Answer-Following are the differences between vector and raster graphics-
1. Raster or Bitmap images are resolution dependent because of this its not possible to increase or decrease their size without sacrificing on image quality.
While vector based image are not dependent on resolution. The size of vector image image can be increased or decreased without affecting image quality.
2. Raster or bitmap images are always rectangular in shape, Vector image, however, can have any shape.
3. Unlike raster image, vector image can’t be use for realistic images. This is because vector images are made up of solid color areas and mathematical gradients, so they can’t be used to show continuous tones of a colors in a natural photograph.

Question-5 What is scaling in computer graphics?
Answer- In computer graphic, image scaling is the process of resizing a digital image. scaling is a non-trivial process that involves a trade off between efficiency, smoothness and sharpness. With bitmap graphics, as the size of an image is reduced or enlarged, the pixels which comprise the image become increasingly visible, making the image appear “soft” if pixels are averaged, or jagged if not.

Question-6 What are the hardware devices used for computer graphics?
Answer- The hardwares devices used for the computer graphics are-
Input Devices
Keyboard, Mouse, Data tablet, Scanner, Light pen, Touch screen, Joystick
Output Devices
Raster Devices- CRT, LCD, LED, Plasma screens, Printers
Vector Devices- Plotters, Oscilloscopes

Question-7 What are the features of inkjet printers?
Answer- Features of inkjet printers are-
1. They can print 2 to 4 pages per minute.
2. resolution is about 360d.p.i. Therefor better print quality is achieved.
3. The operating cost is very low. The only part that requires replacement is ink cartridge.
4. Four colors cyan, yellow, magenta, black are available.

Question-8 What are the advantages of electrostatic plotters?
Answer- Following are the advantages of electrostatic plotters-
1. They are faster then pen plotters and very high quality printers.
2. Recent electrostatic plotters includes a scan conversion capability.
3. color electrostatic plotters are available. They make multiple passes over the paper to plot color picture.

Question-9 What is meant by scan code?
Answer- When a key is pressed on the keyboard, the keyboard controller places a code carry to the key pressed in to the part of the memory called as the keyboard buffer. This code is called as scan code.

Question-10 Define Random and Raster scan displays?
Answer- Random scan is a method in which display is made by electronic beam, which is directed only to the points or parts of the screen where picture is to be drawn.
The Raster scan system is a scanning technique in which the electron sweep from top to bottom and from left to right. The intensity is turned on or off to light and un-light the pixel.

Mention some of the image formats used in multimedia?

Some of the image formats used in multimedia are

  • GIF files
  • JPG files
  • Animated GIF files
  • MPEG files
  • Shockwave files and
  • Nx View files.

6.

Define MIDI?

MIDI format or the Musical Instrument Digital Interface is one that is commonly used for transferring music information between electronic music devices like synthesizers and sound cards in computers.

7.

What is warping?

The technique of distorting a single image to represent something else is known as warping.

8.

What is AVI format?

  • The Audio Video Interleave or AVI format was developed by Microsoft in 1992.
  • It is supported by all Windows operating systems and by most of the popular web browsers.
  • It is a very common format on the Internet. Files in the AVI format have the extension.avi.

9.

Write a note on video files?

  • Video files tend to be very heavy. Several elements such as frame rate, image size, and color depth determine the size of these files.
  • It can differ, to reduce the file size to acceptable levels.
  • The color depth could be reduced to less than 256 colors results in shabby image.
  • Similarly, reducing the frame count to less than 15 frames per second causes the video to look jerky.

10.

Write a note on GIF?

  • GIF (Graphic Interchange Format) is limited to an 8-bit palette.
  • GIF is best suited for storing simple graphic images with relatively few colors.
  • However it is not well fitted for photographic works.JPG scores over GIF in this area.
  • GIF is still used extensively on the Internet and Multimedia applications because of the great reservoir of GIF images available and support for animation.

11.

Mention the categories or JPEG formats?

There are two categories of image file compression are

  • lossy and
  • lossless

12.

What is compression?

  • Compression is a technique by which a recurring set of information is identified and replaced by a single piece of information.

13.

What is elearning?

  • The growing popularity of multimedia is used to train and educate people world over.
  • They are called elearning packages. The most common version of such packages is Computer Based and Web Based Tutorials (CBT/WBT). It is self-paced learning process.

14.

Write a note on JPEG?

  • The JPEG (Joint Photographic Experts Group) image files are a lossy format.
  • All digital cameras can store JPEG formats. The JPEG format supports full color and produces relatively small file sizes.

15.

Mention the special effect technology in 3–D animation?

The special effect technology in 3-D animation are morphing and warping.

16.

What is wave pattern of the sound?

  • The sounds that we hear are analog wave patterns.
  • Two attributes control the characteristics of sound.
  • They are amplitude and frequency.

17.

What is the use of self-paced learning?

  • The use of self-paced learning is that the learner can learn by himself, at a pace and time that he is comfortable with.
  • Plus there is no instructor and the learner does not have to travel to a location to attend the classes.
  • This eliminates the logistical problems of getting together people from different parts of the world.

18.

What are the most common file formats used in multimedia?

  • The two most common multimedia elements are GIF and JPG files.
  • Both of these formats compress static as opposed to animated bitmap images.

19.

What are multimedia simulations?

Multimedia simulations are very effective in explaining difficult concepts and facts. Such media make learning more fun and effective.

20.

Compare lossless and lossy video compressions?

  • Lossless Compression: Retains the exact image throughout the compression.
  • Lossy Compression: Provides a comparatively higher ratio of compression but results in some loss of quality.


What is MMS?

  • MMS stand for Multimedia Messaging System.
  • It is an application that allows one to send and receive messages over cell phones.
  • These are popularly being used to send and receive jokes, music, ringtones, pictures and sometime even videos.

22.

What is SND format?

  • The Sound or SND format was also developed by Apple.
  • Like the AIFF format, the SND files neither cross-platform nor Supported by popular web browsers.
  • Files in the SND format have the extension.snd.

23.

What is real audio format?

  • The Real Audio Format was developed by Real Networks in 1995 and supports both sound and videos.
  • This format is more popular for transfer of data over the internet and allows one to stream files even over internet connections with low bandwidths.
  • However, the quality of these transmissions is often poor.

24.

What is volume?

  • The volume is the height of each crest in the wave

What is sampling?

  • We have to convert the analog sound waves into a digital format before including it in an application.
  • This conversion of analog sound waves to a digital format is called Sampling.




26.

What are the areas where Multimedia applications are used?

Multimedia applications are also widely used in the field of

  • Engineering
  • Medicine and
  • Scientific research

27.

How will we create 3–D animations?

Creating a 3–D animation is a 3-step process.

  • Modeling
  • Animating and
  • Rendering

28.

What is MP3/MPEG format?

  • The MPEG format was developed by Moving Pictures Experts Group.
  • This MPEG format developed for video files while the MP3 format is used to store sound (music).
  • This format has become famous in the Internet in recent times.

Define WAVE format?

  • The WAVE format was developed by IBM and Microsoft.
  • It is one of the more popular formats as it is not only supported by all computers running the windows operating system, but also by all popular web browsers.
  • Files in the WAVE format have the extension. wav

30.

What are the uses of CBT/WBT?

CBT/WBTs today are used to cover a wide range of topics including orienting new employees joining an organization, training employees on new software applications and systems used in an organization.

31.

What is Windows Media format?

  • The Windows Media format was developed by Microsoft.
  • It is also one of the very popular formats on the Internet and on computers with the Windows operating system.
  • It should be noted that this format requires the installation of an additional component in non- windows computers.
  • Files in the Windows Media format have the extension.wmv

32.

How are 2–D animations classified?

2–D animations are classified into two categories: They are

  • Cel based animations and
  • Object based animations

What is AIFF format?

  • AIFF or Audio Interchange File Format was developed by Apple.
  • This is not a very popular format as it is neither cross- platform nor is it supported by all web browsers.
  • Files in the AIFF format have the extension. aif or.aiff

34.

Write a short note on MIDI?

  • MIDI format cannot contain sound. It contains only digital notes.
  • It was developed in 1982.
  • It is a very flexible format used wide range of musical applications.
  • These files are relatively light. Sound files in the MIDI format have the extension. mid or. midi.

35.

What is lossy compression?

  • The lossy compression algorithm takes advantage of the limitations of the human visual senses and discards information that would not be sensed by the eye.
  • The loss of information is tolerable, and in many cases goes unnoticed. JPG is a lossy compression of the image.

36.

How are multimedia used in Engineering?

In Engineering, multimedia tools are used for designing and testing new components and products.

37.

What is the main reason for the popularity of Mp3 formats?

The main reason for the popularity of these formats is that they offer good compression and high quality.

  • They are also cross-platform and supported by most popular web browsers.
  • Sound file extension could be. Mp3. Video files extension are.mpg or.mpeg.

38.

What is shock wave format?

  • The Shockwave format was developed by Macromedia and is used to store multimedia components created using flash.
  • This format requires an extra component to play.
  • The additional component comes preinstalled with the latest versions of Netscape and Internet Explorer.
  • Files in the Shock wave format have the extension.swf.

39.

What is quick time format?

  • The Quick Time Format was developed by Apple primarily to store videos.
  • It is a popular format on the Internet but requires the installation of an additional component in non-windows computers.
  • Files in the Quick Time Format have the extension.mov.

40.

What is animation?

  • Animation is primarily used to illustrate or demonstrate an idea or a concept.
  • Unlike videos that are usually taken from life, animations are based on drawings.

41.

How is video recorded?

  • Like sound, Video is also is also recorded and played back as an analog signal.
  • So, we have to convert the video signal into a digital format before including it in a multimedia application.

42.

What is virtual reality?

  • An environment which is experienced by users as similar to reality.
  • The various multimedia components are coordinated with a technique called Virtual Reality.

43.

How are Multimedia used in Scientific environment?

A scientist can look at the molecular model of a compound and manipulate it.

44.

What are the uses of Morphing and Warping?

Most modern multimedia applications, particularly games, combine these techniques with virtual reality to create an environment in which gives the viewer the feeling that he is part of that environment.

How is Multimedia used in corporate communications?

Context-relevant animations, images and charts help in grabbing the viewers' attention and highlighting critical pieces of information in corporate presentations.

46.

What is vector graphics?

  • Vector graphics help in rendering the image effectively on the screen.
  • Many vendors provide special hardware called vector graphics cards to improve the efficiency in the display of images.

47.

Give an example of static images of multimedia?

Photographs are typical examples of static images. Both the GIF and JPG format compress the image in different ways.

48.

How are Multimedia used in the field of medicine?

In medicine, doctors can get trained by viewing a virtual surgery or by simulating a surgical procedure without endangering the life of a human being.

What is the use of hyperlinks?

  • The use of hyperlinks in multimedia makes it easier to search for and view related content.
  • Such non–linear access to information definitely speeds–up the learning process and makes it more rewarding.

50.

What is vector graphics?

  • Vector graphics help in rendering the image effectively on the screen.
  • Many vendors provide special hardware called vector graphics cards to improve the efficiency in the display of images.

51.

What is pitch?

  • The distance between the crests of the wave is called as the pitch and also called frequency.
  • The greater the distance, the lower is the sound.

52.

What is morphing?

A technique by which we can blend two or more images to form a new image is called as morphing.

What is a cel–based animation?

Cel–based animation consists of multiple drawings, each one a little different from the others. When displayed in rapid sequence, these drawings appear to move.

54.

What is the impact of information presented in a multimedia?

The impact of information presented in a multimedia is that the encyclopedia is several times greater than the same information presented in the printed version.

55.

What is AU format?

  • The AU format is another sound format that is supported by most of the popular softwares in the marker across different platforms.
  • File in the AU format have the extension. Au

56.

Write a note on how to create a 3–D animation?

  • To create a 3-D animation, first create the broad shapes and structures of the 3-D objects to be included in the animation.
  • Then, the created shape models must be animated to define their motion. Finally, we have to render by giving them the attributes, such as colors and textures to the objects.

What is the speciality of multimedia?

The Animated Films are popular among the adults and the children and this is the speciality of multimedia.

58.

What is sound forge?

We can add special effects, such as echo, fade in, and fade out effects, by using sound editing programs such as sound forge.

59.

What are Object based animations?

  • Object based animations also referred to as slide or path animations, are created by moving an object across a screen.
  • This type of animations are usually seen in a computer game.

60.

What are the areas where Multimedia elements are used?

Multimedia elements are also used in advertisements, product catalogs and online magazines.

Source: Contents are provided by Technicalsymposium Google Group Members.
Disclaimer: All the above contents are provided by technicalsymposium.com Google Group members.
Further, this content is not intended to be used for commercial purpose. Technicalsymposium.com is not liable/responsible for any copyright issues.

Technical Symposium.Com All Jobs & Certifications
Lecture Notes and Scholarships & Project Details

Fresher Jobs Details
job detailsAll Fresher Software Jobs Details
job detailsAll Government Jobs Details
job detailsAll Internships Details
job detailsOff-Campus Interviews/Walk-in Details
job detailsAll Competitive Exam Details
job detailsBank Clerk/Officers Jobs Details
job detailsB.Sc/M.Sc Graduate Fresher Jobs
job detailsAll Technical Jobs Details
job detailsAll State/Central Government Jobs Details
Conference/Symposium Details
job detailsAll International Conference Details
job detailsAll National Conference Details
job detailsAll Symposium/Workshop Details
job detailsUniversity Conferences Details
job detailsIIT/NIT/IIM Conference Details
job detailsComputer Science Conference Details
job detailsElectronics Conferences Details
job detailsMechanical Conferences Details
job detailsAll Latest Conferences Details
Calendar of Events Details
job detailsJanuary – List of All Event Details
job detailsFebruary – List of All Event Details
job detailsMarch– List of All Event Details
job detailsApril – List of All Event Details
job detailsMay – List of All Event Details
job detailsJune – List of All Event Details
job detailsJuly – List of All Event Details
job detailsAugust – List of All Event Details
job detailsAll Months - List of All Events Details
GATE Question Papers & Syllabus
job detailsAll GATE Previous Year Question Papers
job detailsGATE Syllabus for All Branches
job detailsGATE-Computer Science Question Papers
job detailsGATE – Mechanical Question Papers
job detailsGATE – ECE Question Papers
job detailsGATE- EEE Question Papers
job detailsGATE – Civil Engineering Question Papers
job detailsGATE – All Branches Question Papers
job detailsGATE Exam Pattern Details
IES Question Papers & Syllabus
job detailsIES Complete Information
job detailsIES Previous Year Question Papers
job detailsIES Syllabus for All Branches
job detailsIES – Mechanical Question Papers
job detailsIES - E & T Question Papers
job detailsIES - EEE Question Papers
job detailsIES -Civil Engineering Question Papers
job detailsIES - All Branches Question Papers
job detailsIES - Exam Pattern Details
All Companies Placement Materials
job detailsTCS Placement Papers
job detailsWIPRO Placement Papers
job detailsZOHO Placement Papers
job detailsCTS Placement Papers
job detailsINFOSYS Placement Papers
job detailsARICENT Placement Papers
job detailsSBI Placement Papers
job detailsRRB Placement Papers
job detailsBANK/IBPS Placement Papers
Aptitude Round Materials
job details Problem on Numbers
job detailsProblem on Trains
job detailsTime and Work
job detailsSimple Interest
job detailsAptitude Short- Cut Formulas
job detailsAptitude Tricks
job detailsOdd Man Out Series
job detailsSimplification Problems
job detailsProfit & Loss
Technical Round Materials
job detailsJAVA Technical Round Q & A
job detailsC Technical Round Q & A
job detailsC++ Technical Round Q & A
job detailsASP.NET Technical Round Q & A
job detailsData Structure Technical Round Q & A
job detailsSQL Technical Round Q & A
job detailsC# Technical Round Q & A
job detailsPHP Technical Round Q & A
job detailsJ2EE Technical Round Q & A
Software Programs and Lab Manuals
job detailsSurvey Lab Manuals
job detailsCAD/CAM Lab Manuals
job detailsOOPS/C++ Lab Manuals
job detailsJAVA/Internet Programming Manuals
job detailsList of All C Programs with Source Code
job detailsList of All Data Structure Programs
job detailsC Aptitude Programs
job detailsMicroprocessor & Micro Controller Manuals
job detailsAll Engineering Branches Lab Manuals
Anna University Syllabus & Question Papers
job detailsB.E/B.Tech Previous Year Question Papers
job detailsBE-Computer Science Syllabus
job detailsBE-Mechanical Engineering Syllabus
job detailsBE-Civil Engineering Syllabus
job detailsBE-ECE Syllabus
job detailsBE-EEE Syllabus
job detailsMBA/MCA Syllabus
job detailsBE-Aeronautical Engineering Syllabus
job detailsBE-Biomedical Syllabus
IBPS/Bank Syllabus & Question Papers
job detailsIBPS Clerk Exam Syllabus
job detailsIBPS Clerk Question Papers
job detailsIBPS Probationary Officers Syllabus
job detailsIBPS PO Question Papers
job detailsIBPS RRB Exam Syllabus
job detailsIBPS Special Officers Exam Syllabus
job detailsSBI Clerk/PO Syllabus
job detailsAll Private Banks PO/Clerk Syllabuses
job detailsAll Nationalized Bank Po/Clerk Syllabuses
Civil Engineering Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
Mechanical Engineering Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
Computer Science Engineering Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
MCA Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
MBA Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
ECE Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
EEE Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
Biotechnology Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
Chemical Engineering Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
Biomedical Engineering Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
Aeronautical Engineering Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsSeventh Semester Lecture Notes
job detailsEighth Semester Lecture Notes
job detailsLab Manuals
B.Sc (All Major Branches) Lecture Notes
job detailsMaths / Statistics Lecture Notes
job detailsPhysics Lecture Notes
job detailsChemistry Lecture Notes
job detailsElectronics Lecture Notes
job detailsComputer Science/IT Lecture Notes
job detailsAgriculture Lecture Notes
job detailsBiotechnology/Biomedical Lecture Notes
job detailsNursing Lecture Notes
job detailsFashion Technology Lecture Notes
M.Sc (All Major Branches) Lecture Notes
job detailsComputer Science/IT Lecture Notes
job detailsAgriculture Lecture Notes
job detailsBiotechnology/Biomedical Lecture Notes
job detailsNursing Lecture Notes
job detailsFashion Technology Lecture Notes
job detailsMaths / Statistics Lecture Notes
job detailsPhysics Lecture Notes
job detailsChemistry Lecture Notes
job detailsElectronics Lecture Notes
B.Com/M.Com Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsLab Manuals
job detailsCommerce Placement Materials
job detailsCommerce Placement Materials
BBA Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsLab Manuals
job detailsPlacement MaterialsEighth Semester Lecture Notes
job detailsFresher Jobs Details
BCA Lecture Notes
job detailsFirst Semester Lecture Notes
job detailsSecond Semester Lecture Notes
job detailsThird Semester Lecture Notes
job detailsFourth Semester Lecture Notes
job detailsFifth Semester Lecture Notes
job detailsSixth Semester Lecture Notes
job detailsLab Manuals
job detailsPlacement Materials
job detailsFresher Jobs Details

Hosting by Yahoo!

About-Us    Contact-Us    Site-map

©copyright All rights are reserved to technicalsymposium.com