A computing device is provided. The computing device includes an electrode layer comprising a plurality of microelectrode arrays (MEAs), each MEA being configured with electrodes for stimulation and sensing of biological cells; an interposer layer comprising an interposer for a wiring connection between the plurality of MEAs and a substrate of the computing device; a circuit layer comprising a plurality of circuit chips configured to stimulate the cells and store excitement of the cells in response to the stimulation by corresponding electrodes; and a controller configured to control whether or how to connect the plurality of circuit chips to the plurality of MEAs.