Multimedia Systems Flashcards
What are the 5 data types?
Text
Video
Animation
Audio
Images
What is the formula to work out the file size of images?
Horizontal x Vertical x Bit Depth / 8 x 1024
What is the formula to work out the file size of audio files?
Sample rate x Sample Size / 8 x number of channels x Duration of track
List the devices that are used to display Multimedia Systems
Screens = CRT, LCD, Plasma, Touch Screens, Smartboards.
Projection devices = Overhead proectors, Data projectors.
Speakers = Mono, stereo, 5:1 Surround sound, 7:1 Surround sound
Head-Up displays = Oculus rift
What are the design principles when making a Multimedia System
Consistency
Navigation
Simplicity
Who are the people involved within a Multimedia System
Project Manager
Technical Staff
System Designer
Content Providers
Multimedia Specialists - (Graphic Designers, Web Developers, Audio / Video Specialist, etc)
What are the techniques of compression and describe what they are?
Lossy Compression removes a number of data bytes from the file in the compression porcess. It cannot be retrieved.
Lossless Compression maintains all data bytes in the compression porcess and allows the original file to be recovered in full.
List the social and ethical issues related to Multimedia.
Copyright
Appropriate use of the Internet
Emerging Technologies
Data Integrity
Privacy of the Individual
Security of Data
What are some devices used for digitising data?
Scanners - Handheld, Flatbed & Overhead.
Digital Cameras
Digital Video Cameras
Microphones
Provide an explanation of what interactivity is
Interactivity allows the users to interact with a computer to choose the sequence and content of information they want to view.
The most constant form of interactivity is typically found in games, which need a continuous form of interactivity with the gamer.
Browsing the Internet, Database applications and other financial, engineering and trading applications are also typically very interactive
What is the difference between cell based animation and path based animation?
Cell based animation involves drawing and displaying individual frames or cells
Path based animation is diplaying the movement of objects onton a fixed background in a particular sequence or path
List and describe each of the storyboard layouts.
Linear: A simple sequential path that is set up quickly.
Hierarchical: A sequential path in a top-down design in which the user starts at the beginning and moves down through the multimedia product.
Non-Linear: no structure; the user moves betweendifferent layouts in any direction.
Combination: a blending of the above layouts.
How many bytes are there in a kilobyte?
1024
