Multimedia Systems

Multimedia system → An information system that combines at least 3 types of media such as:

• Text/numbers → Any sequence of symbols (letters, numbers and other characters) that have meaning

  • Numbers → predefined characters (usually numerals) whose meaning + format are specified
    • used to perform calculations.
  • created using a word processor

• Audio → Sound that is digitised through sampling

  • WAV audio files are slow + large: MP3 format has better quality, lower size + faster transmission

  Mzg1ODMxNTIzMzg1ODM3_JzthsfvUY24.MP3

• Images/animations → Images are visual representations of something. Commonly in JPEG file format. Animations are images that can move. Commonly in GIF file format

  

• Video → moving visual images that are recorded and converted into a digital format

• Difference between animation and video is that animations are made up of pictures put in succession, and videos are a continuous motion broken up into frames. Commonly in MP4

  https://www.youtube.com/watch?v=k1BneeJTDcU

• Hyperlinks → Text that links user to another node. Makes navigation easier.

  • hypertext → the text itself
  • hyperlink → the link that takes the user to a different document
  • allows users to navigate between different pages of a multimedia system
  • https://www.youtube.com/watch?v=dQw4w9WgXcQ

Print and Multimedia Differences

compare and contrast printed and multimedia versions with similar content

• printed IS vs Multimedia IS i.e. printed maps vs google maps

Different modes of display

• Print is displayed on paper. Multimedia is displayed on electronic displays, speakers, etc.
• Print is harder to edit. Easily lost

Interactivity and involvement of participants in multimedia systems

• Multimedia is more interactive than print. Has hypermedia, for example, above. Therefore users can control their own experience.
  • interactivity achieved by input devices (touchscreens, keyboards, dynamic displays (screens, speakers)) that allow users to input data, react and change display accordingly thus high level of participant involvement
  • Print does not have such features, so not as interactive

Ease of distribution

• Multimedia easily distributed, using networks such as internet.
  • E.g. Hyperlinks easily allow people to access website
• Print requires physical delivery. Waste of time, and resources.

Authority of documents