A drilling assembly for drilling a subterranean wellbore includes an expandable reamer and an expandable stabilizer. According to one embodiment, a network operating system is executed on processor elements of a switch. A swivel member is pivotally connected to the housing body, and a motion sensor is connected to the swivel member. The sampling pattern, in one example, includes subsampling pixels at different rates for horizontal and vertical directions. The support hook comprises a hook portion removably positioned in the aperture and an anchor portion removably positioned in the depression of the base plate such that the support hook extends from the rear face to the front face of the base plate. The bricks are oriented at 180\xb0 from one to the next in the direction of the columns and in the direction of the rows, and each brick comprises an even number of power supply conductor segments arranged symmetrically with respect to an axis of symmetry of the brick and connecting opposite edges of the brick.