Systems and methods for accessing data from a database are provided. The processing units are connected to each other via a network bus for data transmission, and distributed sensors are provided for gathering first andor second measurement data within a local extension of the robot system. The method also includes calculating a peak-to-peak value of the simulated-cross-track-gain profile, and applying a selection criterion based on the peak-to-peak value of the simulated-cross-track-gain profile to screen the magnetic-recording head for use as the manufacturing-qualified, magnetic-recording head. If using isolated environments, the isolated environments may be isolated from other applications and the host operating system on the clients and applications within the isolated environments may run without performing an application-installation on the client. When the cam is rotated so that it may traverse a slot region, the handle can be turned to move the valve closing member through an angle subtended by the slot region. The method for managing a wireless network disassociates a wireless device determined to be disassociatable from the wireless network.