A video lecture that shows how to build a game-playing computer starting from first principles, e.g. hardware, and piling on the abstractions until you have a CPU, language processors, and a VM that can be used to write, compile, and run a Space Invaders game. If you are not sure whether it is worth investing the hour for the full lecture then try this 10 minute taster:
The full hour-long lecture, "From NAND to Tetris" is here:
As you begin the revision process ready for the exams you might find that taking a look at relevant video lectures like these will be a useful alternative to reading through your notes yet again.
