Portable multi-purpose audience measurement systems, apparatus and methods are disclosed. An equal comparator does not indicate an equal condition until the two binary input values are exactly the same. The electrical signal is amplified, and used in modulating the optical signal. The handle can include a positioning mechanism to enable the physician by manual manipulation to move and hold in place the laser fiber longitudinally within the second lumen. The service support platform of the invention on the other hand may monitor the computer services network and detect the occurrence of a failure or performance lag, and temporarily detach the faulted server or other resource from the larger network service. The final color value of each ray corresponds to a pixel value of the 2D image.