I used to love Alex Rider. I reread the first couple loads of times, and have all the books up to Snakehead. Snakehead disappointed me though, and I stopped reading after that. I have vivid memories of them though. The ski chase in Point Blanc, the scuba diving in Skeleton Key, the temple game...
Almost every modern piece of software is developed using an object-oriented paradigm.
For an example, you could talk about iPhone app development. Here is a tutorial which demonstrates OOP in an iPhone app: http://www.raywenderlich.com/1797/how-to-create-a-simple-iphone-app-tutorial-part-1
Radio buttons themselves are not a data type and don't go in the data dictionary. However, they operate as an interface to change a piece of data, which may be a string or an integer.
Re: HSC 2013 4U Marathon
Observation: if we pick some number n, the number 101-n is excluded. n and 101-n are always of opposite parity.
The sum of integers 1..100 is 5050. Take all the 50 odd numbers to be in our set, since they will add up to approximately 5050/2, and by the observation...
Let's be honest though... most HSC english markers are impressed with sophisticated language. To get into the mid-high A range, you need to be writing with a flourish. Just make sure that you're not using that language incorrectly or awkwardly, or else you'll sound like an idiot and it'll cost...