photovoltaic cells can be used in handheld calculators
photoelectric_cell is transducer. calculator is electronic_device. multiplan is not very_sophisticated_calculator. solar_cell is not photovoltaic_cell. photoelectric_tube is laboratory_equipment. multiplan is very_sophisticated_calculator. calculator is computer. photoelectric_cell is not transducer. solar_cell is photovoltaic_cell. calculator is not electronic_device.