The answer to 'types of outlet' is that there are several common types of electrical outlets found in homes, each with their own unique features and purposes. The most common types are standard 120V outlets, GFCI (ground fault circuit interrupter) outlets, and USB outlets.
Standard 120V outlets are the basic electrical outlets found throughout most homes and are used to power a wide variety of household appliances and electronics. GFCI outlets are designed to provide additional safety by detecting ground faults and quickly shutting off power to prevent electric shocks. USB outlets combine a standard electrical outlet with built-in USB ports, allowing you to charge devices without needing a separate adapter.