A handheld computing device is introduced comprising a motion detection sensor and a motion control agent. The device further includes a LCD fit into the front face of the casing 10. One or more vent channels are preferably formed in the piston rod, with one or more ribs arranged longitudinally through or between the vent channels. A display device employing a frame is also provided. Additionally-optionally, input data matching SC is added as search terms. Each second resistor comprises one end connected to the first node.