Systems and methods provide for adaptive drive signal adjustment to improve reception of a stylus signal at a location sensor. The nonaqueous electrolytic solution contains a silicon compound represented by formula :wherein R1 represents an alkenyl group having 2 to 10 carbon atoms; R2 and R3 each represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a halogen atom; and X represents a halogen atom. The calculation unit incorporates a keyboard disposed on a top surface of the electronic device and an electronic circuit to perform calculation processing according to an operation of the keyboard. The packet is placed into a queue and processed in an order based at least in part on its priority level. The designated recipient device may provide an acknowledgement, data, a command, or status information may be sent back.