You are upgrading the memory of a desktop PC. What is the primary factor that makes equipment grounding an important safety procedure?

Little amounts of electricity can endanger computer components, while enough electricity can hurt people. Electrostatic discharge (ESD) is one of the biggest concerns for components. ESD often just causes a little shock to a person and won't cause any major harm. Little amounts of ESD, smaller than you could see a spark or feel a zap, however, can seriously harm computer components, leading to their hanging, frequent rebooting, or full failure.