An operating system deployment arrangement provides a database connected to a network for use in monitoring the boot status of machines connected to sub-networks of the network. Information on the activation states of components of signal transduction pathways derived from use of the invention can be used for cancer diagnosis, prognosis, and in the design of cancer treatments. An inert gas supply, under positive pressure, is connected to the gas inlet and a vacuum powered pressure regulator is connected to the gas outlet to maintain a predetermined pressure level within the closed chamber and to substantially inhibit pressure fluctuations within the chamber that may affect accuracy of the scale. The tufting machine produces a patterned surface covering having a plurality of yarn colors and a plurality of pile heights.