Now I don't know what you're talking about. You said your computer didn't work the way I described, which I understood meant that your computer didn't have any one of the parts I mentioned in the slideshow. I also don't know what you mean by a non-rotating chip.
Did you mean to say that the parts weren't removable? They are. In a standard desktop computer, CD readers, graphics cards, power supplies, video output, and even the CPU and main memory can be removed and replaced. Laptops are a bit different. Some of the laptop components are welded onto the board.
What doesn't change is the fact that your computer's fundamental parts are the CPU and main memory, which work in a similar way to how I described in the second half of the slideshow.