moth.er.board

n.Computer Science （名詞）【計算機科學】
The main board of a computer, usually containing the circuitry for the central processing unit, keyboard, and monitor and often having slots for accepting additional circuitry.
母板，主板：計算機的主板，通常包括中央處理器電路元件、鍵盤電路元件和顯示器電路元件，并且還包括接受其他電路元件的插槽