Comment by pddpro

Precisely. There is a (now outdated) model called Truine Brain model which proposes three layers of intelligence: the cortex which is responsible for higher thinking/planning/executive functions, the limbic system responsible for 4Fs/emotions, and the basal gangalia/brainstem responsible for basic functions like movement, homeostasis and etc. It's uncanny how this matches closely with the Software/OS/BIOS analogy.