Which voltage levels are typically supplied by a power supply in a computer?

The correct response identifies the typical voltage levels provided by power supplies in computers, which are 3.3 volts, 5 volts, and 12 volts DC. Each of these voltage levels corresponds to specific components within a computer system.

For instance, 3.3 volts is commonly used for powering the CPU and other integrated circuits, while 5 volts is often used for logic circuits and peripheral devices like USB ports. The 12 volts supply is primarily utilized for powering components that require more significant energy, like hard drives and cooling fans.

This voltage distribution is crucial for the proper function and efficiency of computer hardware, ensuring that various components receive the correct amount of power needed for their operation. Other voltage levels mentioned in the other options—such as 1.5, 3.0, 15, 24, 8, and 16 volts—are either too low, not standard for computer applications, or typically associated with different types of devices, such as household electronics or specialized equipment rather than standard computer power supplies.