What is a motherdboard?

Answer 1

I believe you mean a "motherboard". This common computer hardware connects the central processing unit (CPU) to all of its peripherals (input, output, signaling, and storage devices). It is also responsible for drawing power from the power supply unit (PSU) and distributing it to all of the integrated circuits (ICs) that are attached to it. Permanent and removable media devices typically draw their power directly from the PSU, while the motherboard routes power to USB devices, input devices, CPU, RAM, and the various IC chips and addon modules (such as PCI and ISA buses) that operate from the power matrix that the motherboard supplies.