Question: what are eight key components to every robot?
Answer: Actuation: ADVERTISEMENTS: ...  Motors: The vast majority of robots use electric motors, including bushed and brushies DC motors. Stepper motors: ADVERTISEMENTS: ...  Piezo Motors: A recent alternative to DC Motors are piezo motors or ultrasonic motors. ...  Air Muscles: ...  Electroactive polymers: ...  Elastic Nanotubes: ...  Manipulation: