An apparatus and method for providing a quicker boot for computer systems is provided. The ramp is sloped towards a user such that the user can step up onto the ramp at various heights, thereby regulating the degree of intensity of the workout without having to suspend the workout to adjust the step height, as is the case when using a conventional aerobic step having a raised level platform. In this way, the display of the parallel side-by-side arrangement of several windows on several screens is possible, the resolution of the window being adapted to the screen resolution. The sheets are selectively fed into and delivered through the first passage, the second passage or the subsidiary passage to be single-facedouble-face scannedprinted. The process is shown to have little or even no impact on the gas turbine cycle performance when no reforming is applied. Vehicle’s side slip angle, front and rear tire slip angles, yaw rate and lateral acceleration rate are derived explicitly from self-mixing laser sensors.