Biggest invention

Semiconductor

Semiconductor is one of the biggest invention of manhood.

Why?

Conductor->Fully passes the current

Insulator-->Fully rejects the current 

Semiconductor-->It is somewhere inbetween, partially passes the current.

Electronic devices apparently powered by current and they could not have Conductors inside its components, which will result only in damage of its intrinsic components.

Current Flow must be controlled within the components of Electronic devices.

Semiconductor is the base material to control the Current Flow! 


Having said that, a component ,built with Semiconductor as a base material, does the actual Controlling of Current Flow.

Do you know? which is that component?