Is this a good example for representing the abstract factory pattern?

It is a good example of portions of the pattern. The basic construction of objects is a decent example, however, the logic relies upon a single Computer. ComputerType enum.

This enum needs to know, in advance, every type of computer exposed by every factory.

I'm not Factory pattern expert but here are couple of things I would do differently.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.