Hmmm.. I'm aware of the fact that there are lower levels when I'm writing my C++ stuff, but I'm afraid I don't really know much about how they all work. I'm not even sure how I would go about finding out.

And I never really had the chance to play around with spectrums and the like. I wasn't born until 1984 - and it's now far too difficult to both find such things, and also find manuals on how to use them.

I do have a short thingmy on machine code, which I really ought to finish reading, and reading through a book on Unix told me more than I knew before I did so.