What three voltages are commonly provided by the power supply to the various components inside the computer?

In a typical computer power supply, three common voltages provided to various components are:

1. +3.3 Volts: This voltage is primarily used by modern CPUs, GPUs, and memory modules (RAM). It powers various logic and control circuits in these components, ensuring their optimal operation.

2. +5 Volts: This voltage supports older components and is still used for various connectors, particularly in logic circuits, USB ports, and specific storage devices like hard drives. It also powers the motherboards and some technology that was standard in earlier PC designs.

3. +12 Volts: This is the most critical voltage for components that require significant power, such as the CPU, graphics cards, and cooling fans. It provides the necessary power for motors and high-performance components that consume more current.

These voltages are essential for the smooth operation and functionality of a computer, supplying the necessary power to both the mainboard and associated peripherals.