A personal computer emulates the functionality of a smart card reader that conforms with the PCSC standard, to enable the computer to communicate with a reader that complies with the EMV standard for financial transactions. The buffer is configured to receive a set of bits representing data stored at a memory. A MEM actuator drives the rotation of the stage between at least two predetermined rotational positions. The fore and aft movement of the nose spar hinge hub facilitates the respective expansion and collapsing of the batten assembly.