A programming method efficiently programs programmable logic devices of the type having specialized multiplier blocks that include multipliers and other arithmetic function elements. The shocking circuit includes a set of capacitors, a resistive-capacitive filter, and low pain waveform control unit for selectively discharging the capacitors through the RC filer to generate the rounded pulse waveform. A first virtual machine determines whether a first program is to be executed on the first virtual machine or to be executed on a virtual machine other than the first virtual machine. A beam receiving means detects the beam reflected from the substance. The optical disk further comprises at least one linear antenna element coupled to the transponder, e.