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2009-05-07 Organising Multimedia

posted May 6, 2009, 9:30 PM by Unknown user   [ updated May 11, 2009, 5:42 AM by Eddie Woo ]
For further details, please refer to IPT: Organising/S&R Multimedia

1. Multimedia representation for recording artist

Coming soon

2. Multimedia representation for film production

Coming soon

3. Jacaranda questions 7.6

3. What are "pits" and "lands"?
"Pits" and "lands" refer to the depressions or lack thereof on the surface of optical media (CD, DVD, etc). Using these to represent data as the element being controlled (the depression) can only be in one of two conditions (existent or non-existent), hence representing either a 0 or 1 - the building blocks of all digital data.

4. Why are CD-ROM and DVD popular methods for distributing multimedia?
They are popular because they are easy to physically manufacture (mostly plastic), are a good physical size (too big to be lost easily but too small to be bulky), and widely compatible.
8. What improvements in laser technology have made DVD possible?
More accurate, and smaller laser in radius. Accuracy allows for smaller bumps (leaving less buffer zone for inaccurate laser hits), and small radius allows for even smaller bumps (less physical space produced by the laser, and hence more laser bumps).