mother board and graphic card
the mother board
the motherboard is the main board. The motherboard is a printed circuit that is the foundation of a computer, located at the bottom of the computer case. It allocates power to the CPU ,RAM and all other computer hardware components and allows them to communicate with one another. the base of the mother board is normally plain black.
the motherboard is also known as mainboard, mobo (abbreviation), MB (abbreviation), system board, logic board.