Thanks, everyone, for all the guidance.  I will look at the references you suggested. 

Re: structs vs classes.  I do understand the difference in terms of values vs. reference types.  I guess my question is what's an example of a situation when you would use a struct instead of a class.  Both can contain methods.  Both can contain fields.  One is allocated on the stack, one on the heap.  You can't inherit from a struct.  You can create a sealed class from which you can't inherit either.  So why use a struct at all?  Why not just use a class or a sealed class instead?

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Up to about mid-afternoon yesterday, I was blissfully immersed in C# programming.  I am enjoying this class so, so much!  And then reality came crashing down.

The official memo finally came from CHED with the application form for Center of Excellence (COE) status.  DISCS is currently a Center for Development for Excellence (CODE), which is a rung lower than COE.  This year, for the first time, CHED is granting COE status to qualified universities.  Putting together the application means compiling volumes and volumes of documentation.  Oh and the deadline is May 30.