A system provides efficient multi-protocol database transaction processing in a multi-communications protocol and multi-programming model computing environment. The piston bore is in a single housing component with an annular cavity that provides access to all piston bores to move the pistons in a first direction. A security document is examined under static condition. It is pivotally mounted to the rear of the frame structure means, and is capable of pivoting in both the forward and backward directions via the power transfer means.