A lock housing for releasably securing the free end of a cable or shackle in the interior of the housing is in the form of an inner substantially rigid non-steel body encapsulated or enclosed within a hardened steel shell. The determination unit determines an amount of hardware computational resources of the computer to determine the number of interpretation units capable of being implemented by the determined amount of hardware computational resources. The hinge includes means for adjusting the magnitude of the damping supplied. The reflective serves to block unwanted radial side lobes.