Systems and methodologies are described that facilitate network management and optimization. An objective lens converges the laser beam emitted from the cylindrical lens into a point P1 in the Y-axis direction and into a point P2 in the X-axis direction. The obtained attribute values are compared to a state of the computing device, user preferences, or other criteria to select at least one of the NAPs for connection with the computing device. The first memory module and the memory controller are in direct communication via the upstream memory bus and the downstream memory bus. The level unit has a level potential which changes with the light modulating circuit. The Mercury display and trading method of the present invention ensure fast and accurate execution of trades by displaying market depth on a vertical or horizontal plane, which fluctuates logically up or down, left or right across the plane as the market prices fluctuates.