I view the body as a whole also like an operating system. Having ADHD, you get bombared with all kinds of info at the same time and that can cloud your judgement and slow your thinking. Just like a computer receiving interrupt requests from the operating system. A PC is highly more efficient with less processes running and less hardware to interrupt it's cpu resources. Just like people who go blind often aquire better hearing. There is less resources dedicated to one sense so more can be prioritized to the next important. But the brain is very remarkable in it's data compression and I don't see how it can compare with a PC. A PC is not intelligent enough to know what data is to be compressed to which extent and which data to forget and which to remember. As you can see, a PC is highly inefficient without an intelligent being behind the controls.