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Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                Computer Fundamentals: Pradeep K. Sinha & Priti Sinha




Ref. Page   Chapter 19: Multimedia                     Slide 1/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                           Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Learning Objectives

  In this chapter you will learn about:
  § Multimedia
  § Multimedia computer system
  § Main components of multimedia and their associated
    technologies
  § Common multimedia applications




Ref. Page 366          Chapter 19: Multimedia                     Slide 2/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                            Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Multimedia

  § Media is something that can be used for presentation of
    information.
  § Two basic ways to present some information are:
       § Unimedia presentation: Single media is used to
         present information
       § Multimedia presentation: More than one media is
         used to present information
  § Multimedia presentation of any information greatly
    enhances the comprehension capability of the user as it
    involves use of more of our senses




Ref. Page 366           Chapter 19: Multimedia                     Slide 3/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                             Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Common Media

  § Common media for storage, access, and transmission of
    information are:
       § Text (alphanumeric characters)
       § Graphics (line drawings and images)
       § Animation (moving images)
       § Audio (sound)
       § Video (Videographed real-life events)
  § Multimedia in information technology refers to use of more
    than one of these media for information presentation to
    users




Ref. Page 367            Chapter 19: Multimedia                     Slide 4/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                              Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Multimedia Computer System

  § Multimedia computer system is a computer having
    capability to integrate two or more types of media (text,
    graphics, animation, audio, and video)
  § In general, size for multimedia information is much
    larger than plain text information
  § Multimedia computer systems require:
       § Faster CPU
       § Larger storage devices (for storing large data files)
       § Larger main memory (for large data size)
       § Good graphics terminals
       § I/O devices to play any multimedia

                                                             (Continued on next slide)



Ref. Page 367             Chapter 19: Multimedia                        Slide 5/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                                        Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

     Text Media
(Continued from previous slide..)


       § Alphanumeric characters are used to present information
         in text form. Computers are widely used for text
         processing
       § Keyboards, OCRs, computer screens, and printers are
         some commonly used hardware devices for processing
         text media
       § Text editing, text searching, hypertext, and text
         importing/exporting are some highly desirable features
         of a multimedia computer system for better presentation
         and use of text information




  Ref. Page 368                     Chapter 19: Multimedia                     Slide 6/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                              Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Graphics Media

   § Computer graphics deals with generation, representation,
     manipulation, and display of pictures (line drawings and
     images) with a computer
   § Locating devices (such as a mouse, a joystick, or a
     stylus), digitizers, scanners, digital cameras, computer
     screens with graphics display capability, laser printers,
     and plotters are some common hardware devices for
     processing graphics media
   § Some desirable features of a multimedia computer system
     are painting or drawing software, screen capture software,
     clip art, graphics importing, and software support for high
     resolution




Ref. Page 369             Chapter 19: Multimedia                     Slide 7/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                            Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Animation Media

  § Computer animation deals with generation, sequencing,
    and display (at a specified rate) of a set of images
    (called frames) to create an effect of visual change or
    motion, similar to a movie film (video)
  § Animation is commonly used in those instances where
    videography is not possible or animation can better
    illustrate the concept than video
  § Animation deals with displaying a sequence of images at
    a reasonable speed to create an impression of
    movement. For a jerk-free full motion animation, 25 to
    30 frames per second is required



                                                           (Continued on next slide)



Ref. Page 371           Chapter 19: Multimedia                        Slide 8/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                                        Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

     Animation Media
(Continued from previous slide..)



      § Scanners, digital cameras, video capture board
        interfaced to a video camera or VCR, computer
        monitors with image display capability, and graphics
        accelerator board are some common hardware devices
        for processing animation media
      § Some desirable features of a multimedia computer
        system with animation facility are animation creation
        software, screen capture software, animation clips,
        animation file importing, software support for high
        resolution, recording and playback capabilities, and
        transition effects




  Ref. Page 371                     Chapter 19: Multimedia                     Slide 9/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                             Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

  Virtual Reality

   § Virtual reality is a relatively new technology using
     which the user can put a pair of goggles and a glove
     and tour a three-dimensional world that exists only in
     the computer, but appears realistic to the user




Ref. Page 371            Chapter 19: Multimedia                     Slide 10/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                            Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

  Audio Media

  § Computer audio deals with synthesizing, recording, and
    playback of audio or sound with a computer
  § Sound board, microphone, speaker, MIDI devices,
    sound synthesizer, sound editor and audio mixer are
    some commonly used hardware devices for processing
    audio media
  § Some desirable features of a multimedia computer
    system are audio clips, audio file importing, software
    support for high quality sound, recording and playback
    capabilities, text-to-speech conversion software,
    speech-to-text conversion software, and voice
    recognition software




Ref. Page 373           Chapter 19: Multimedia                     Slide 11/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                             Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

  Video Media

  § Computer video deals with recording and display of a
    sequence of images at a reasonable speed to create an
    impression of movement. Each individual image of
    such a sequence is called a frame
  § Video camera, video monitor, video board, and video
    editor are some of the commonly used hardware
    devices for processing video media
  § Some desirable features of a multimedia computer
    system with video facility are video clips and recording
    and playback capabilities




Ref. Page 374            Chapter 19: Multimedia                     Slide 12/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                               Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Multimedia Applications

  § Multimedia presentation
  § Foreign language learning
  § Video games
  § Special effects in films
  § Multimedia kiosks as help desks
  § Animated advertisements
  § Multimedia conferencing




Ref. Page 375            Chapter 19: Multimedia                       Slide 13/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                              Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Media Center Computer

  § There is a growing trend of owning a personal computer
    (PC) at home like other electronic equipment
  § New terminologies like “infotainment” and “edutainment”
    have evolved to refer to computers as versatile tools
  § Media center PC provides following functionalities:
       § Server as PC, TV, radio, and music system
       § Serve as digital photo album and digital library
       § Server as Game station and DVD/CD Player
       § Allows play, pause, and record of TV programs
       § Provides Electronic Programming Guide (EPG)




Ref. Page 376             Chapter 19: Multimedia                     Slide 14/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                               Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Media Center Computer


                                                     High-resolution
                                                     display screen



     System
     Unit
                                                        Remote
                                                        Control



                                                                  Mouse
                Keyboard




Ref. Page 377              Chapter 19: Multimedia                         Slide 15/16
Computer Fundamentals: Pradeep K. Sinha & Priti Sinha
                                     Computer Fundamentals: Pradeep K. Sinha & Priti Sinha

 Keywords/Phrases

       §   Animation
       §   Audio
       §   Clip art
       §   Cognitive graphics
       §   Computer Aided Design (CAD)
       §   Computer Aided Manufacturing (CAM)
       §   Frames
       §   Generative graphics
       §   Graphics
       §   Multimedia
       §   Media Center Computer
       §   Pixel
       §   Refresh rate
       §   Text
       §   Transducer
       §   Transition effects
       §   Video
       §   Virtual reality




Ref. Page 378                    Chapter 19: Multimedia                     Slide 16/16

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Chapter19 multimedia-091006115642-phpapp021-120309093503-phpapp02

  • 1. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Ref. Page Chapter 19: Multimedia Slide 1/16
  • 2. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Learning Objectives In this chapter you will learn about: § Multimedia § Multimedia computer system § Main components of multimedia and their associated technologies § Common multimedia applications Ref. Page 366 Chapter 19: Multimedia Slide 2/16
  • 3. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Multimedia § Media is something that can be used for presentation of information. § Two basic ways to present some information are: § Unimedia presentation: Single media is used to present information § Multimedia presentation: More than one media is used to present information § Multimedia presentation of any information greatly enhances the comprehension capability of the user as it involves use of more of our senses Ref. Page 366 Chapter 19: Multimedia Slide 3/16
  • 4. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Common Media § Common media for storage, access, and transmission of information are: § Text (alphanumeric characters) § Graphics (line drawings and images) § Animation (moving images) § Audio (sound) § Video (Videographed real-life events) § Multimedia in information technology refers to use of more than one of these media for information presentation to users Ref. Page 367 Chapter 19: Multimedia Slide 4/16
  • 5. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Multimedia Computer System § Multimedia computer system is a computer having capability to integrate two or more types of media (text, graphics, animation, audio, and video) § In general, size for multimedia information is much larger than plain text information § Multimedia computer systems require: § Faster CPU § Larger storage devices (for storing large data files) § Larger main memory (for large data size) § Good graphics terminals § I/O devices to play any multimedia (Continued on next slide) Ref. Page 367 Chapter 19: Multimedia Slide 5/16
  • 6. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Text Media (Continued from previous slide..) § Alphanumeric characters are used to present information in text form. Computers are widely used for text processing § Keyboards, OCRs, computer screens, and printers are some commonly used hardware devices for processing text media § Text editing, text searching, hypertext, and text importing/exporting are some highly desirable features of a multimedia computer system for better presentation and use of text information Ref. Page 368 Chapter 19: Multimedia Slide 6/16
  • 7. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Graphics Media § Computer graphics deals with generation, representation, manipulation, and display of pictures (line drawings and images) with a computer § Locating devices (such as a mouse, a joystick, or a stylus), digitizers, scanners, digital cameras, computer screens with graphics display capability, laser printers, and plotters are some common hardware devices for processing graphics media § Some desirable features of a multimedia computer system are painting or drawing software, screen capture software, clip art, graphics importing, and software support for high resolution Ref. Page 369 Chapter 19: Multimedia Slide 7/16
  • 8. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Animation Media § Computer animation deals with generation, sequencing, and display (at a specified rate) of a set of images (called frames) to create an effect of visual change or motion, similar to a movie film (video) § Animation is commonly used in those instances where videography is not possible or animation can better illustrate the concept than video § Animation deals with displaying a sequence of images at a reasonable speed to create an impression of movement. For a jerk-free full motion animation, 25 to 30 frames per second is required (Continued on next slide) Ref. Page 371 Chapter 19: Multimedia Slide 8/16
  • 9. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Animation Media (Continued from previous slide..) § Scanners, digital cameras, video capture board interfaced to a video camera or VCR, computer monitors with image display capability, and graphics accelerator board are some common hardware devices for processing animation media § Some desirable features of a multimedia computer system with animation facility are animation creation software, screen capture software, animation clips, animation file importing, software support for high resolution, recording and playback capabilities, and transition effects Ref. Page 371 Chapter 19: Multimedia Slide 9/16
  • 10. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Virtual Reality § Virtual reality is a relatively new technology using which the user can put a pair of goggles and a glove and tour a three-dimensional world that exists only in the computer, but appears realistic to the user Ref. Page 371 Chapter 19: Multimedia Slide 10/16
  • 11. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Audio Media § Computer audio deals with synthesizing, recording, and playback of audio or sound with a computer § Sound board, microphone, speaker, MIDI devices, sound synthesizer, sound editor and audio mixer are some commonly used hardware devices for processing audio media § Some desirable features of a multimedia computer system are audio clips, audio file importing, software support for high quality sound, recording and playback capabilities, text-to-speech conversion software, speech-to-text conversion software, and voice recognition software Ref. Page 373 Chapter 19: Multimedia Slide 11/16
  • 12. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Video Media § Computer video deals with recording and display of a sequence of images at a reasonable speed to create an impression of movement. Each individual image of such a sequence is called a frame § Video camera, video monitor, video board, and video editor are some of the commonly used hardware devices for processing video media § Some desirable features of a multimedia computer system with video facility are video clips and recording and playback capabilities Ref. Page 374 Chapter 19: Multimedia Slide 12/16
  • 13. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Multimedia Applications § Multimedia presentation § Foreign language learning § Video games § Special effects in films § Multimedia kiosks as help desks § Animated advertisements § Multimedia conferencing Ref. Page 375 Chapter 19: Multimedia Slide 13/16
  • 14. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Media Center Computer § There is a growing trend of owning a personal computer (PC) at home like other electronic equipment § New terminologies like “infotainment” and “edutainment” have evolved to refer to computers as versatile tools § Media center PC provides following functionalities: § Server as PC, TV, radio, and music system § Serve as digital photo album and digital library § Server as Game station and DVD/CD Player § Allows play, pause, and record of TV programs § Provides Electronic Programming Guide (EPG) Ref. Page 376 Chapter 19: Multimedia Slide 14/16
  • 15. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Media Center Computer High-resolution display screen System Unit Remote Control Mouse Keyboard Ref. Page 377 Chapter 19: Multimedia Slide 15/16
  • 16. Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Keywords/Phrases § Animation § Audio § Clip art § Cognitive graphics § Computer Aided Design (CAD) § Computer Aided Manufacturing (CAM) § Frames § Generative graphics § Graphics § Multimedia § Media Center Computer § Pixel § Refresh rate § Text § Transducer § Transition effects § Video § Virtual reality Ref. Page 378 Chapter 19: Multimedia Slide 16/16