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10IPT: Communications Systems

posted Feb 7, 2012, 12:57 PM by Eddie Woo   [ updated Feb 7, 2012, 1:05 PM ]
10IPT... 10IPT? Oh, that's you! Hope you're settling well into new year 10 classes (and aren't too depressed about what maths class you got put in). The precise date of your final HSC exam hasn't been set, but it's exactly 250 days until the official HSC written exam period begins. 250 days might seem like a lot, but I can promise it will race by!

Today (as you can tell by the title), we are beginning a new topic. Before we get onto that, though, I thought it would be useful if you had a look back at all that we've covered in the HSC course so far:

That's a list of every lesson (and hence, all the tasks) we've covered since beginning the HSC course in Term 3 last year. For the record, you guys are totally racing through the course - we'll have plenty of time at later to revise, which is great. Now that that's out of the way, let's get started on the final core topic: Communications Systems!
  1. Describe the main features of the diagram below (click to enlarge).

  2. Define a protocol, and explain why they are needed in communications systems.

  3. For each of the following instances of communication, identify the source, transmitter, medium, receiver and destination that form the communications system.
    • You receive a postcard in the mail from a family member overseas.
    • You watch a TV show.
    • You place an order at McDonald's.
    • The person taking your order at McDonald's requests for your meal to be made.

  4. Outline the ways that you rely on communications systems (both implicitly and explicitly) in a normal day.