The muscular system.
The digestive system provides fuel for the body in a form it can use.
Mini people run around inside you with filling cabinets full of information
The nervous system.
Control is the nervous major system of the body.
the digestive system
they run fast
You use your nervous system, respiratory system, muscular system, and cardiovascular system.
Muscular system and skeletal system are the major components in walking and running.
Digestive system which processes food for use in your body.
as reinforcement and support
System Software is the information needed to run the system. like config files and your O.S. (operating system).
the nervous system is just a simple part of your body; lets say you see a dog runnin at you your body will go in shock and it sends a signal to your reactions to make you run