Refers to Electro Static Discharge (ESD), if that's not obvious to you. That's the shock you get when you touch a doorknob on a dry day, although they might re

Refers to Electro Static Discharge (ESD), if that's not obvious to you. That's the shock you get when you touch a doorknob on a dry day, although they might refer to that as HBM (Human Body Model) ESD.