**1.5 The heart of Lego Mindstorm**

The RCX is capable of outputting a maximum of 700mA and 9V through each of its power outputs. This translates into 6.3 Watts, which is very small amount of power. Because of this limited supply, LEGO manufactured motors are the most efficient to use for the ROV because they are already rated for such a low power level. LEGO MINDSTORMS for school is a modular concept for teaching groups of children from pre-University level in a classroom or after-school club environment. It is made up of core construction and add-on resource sets, a software program, and curriculum relevant activity packs.
