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there is a question in a paper that says "describe in detail how the sound component of multimedia is recorded and stored. include a labelled diagram" i dont understand what it is asking, i dont know how to draw the diagram either... any ideas??

yep, thanx heaps for that :)

hey, i dont understand the difference between a primary and foreign key or when they are used and added to existing databases. if someone could please explain that would be great :)

hey, the other day my teacher gave the class example questions that are similar to hsc question format etc. however one of the questions was a case study type quesion, giving a senario and we needed to determine how to help an injured player with shoulder injury i was just wondering if they...