A computer-implemented analytical and reporting system includes an input device, a database and a processor. Series capacitors are provided having at least two interior plates redundantly electrically connected to at least two respective exterior plates. If the instant task is determined to be an automation candidate, the instant task is added to the list of included tasks, otherwise the instant task is added to the list of excluded tasks. the relative proportion of high intensity pixels. The rotary knob is supported so as to be rotatable with respect to at least a part of the magnetic circuit, the gap present between the rotary knob and the magnetic circuit is filled with a magnetorheologic fluid, and the coil is arranged to exert a variable braking action on the rotary knob.