A hinge mechanism includes a housing, a spring member, a slider, a rotating member and a connecting rod. The MC receives a request for a memory read or an InputOutput write from a central processing unit for a physical address specified by the system’s memory management unit. The cannula defines a longitudinal axis and has a longitudinal passageway for passage of a surgical object for positioning with respect to the tissue site. The silicon oxynitride film is graded, to form a gradual change in composition of nitrogen and oxygen within the film. The personal watercraft is adapted to limit the engine speed to be lower than a predetermined engine speed when a temperature of cooling water of the engine is lower than a predetermined temperature. Each profile when selected enables a respective set of applications to run on the system.