42 designing, developing and testing computer hardware and software for others; designing, developing and testing telecommunications, communications, and networking hardware and software for others; designing, developing and testing semiconductors, microprocessors, microchips, integrated circuits and high speed mixed signal integrated circuits for others; technical support services, namely, monitoring performance, and trouble-shooting problems, in the fields of semiconductors, microprocessors, microchips, integrated circuits, and high speed mixed signal integrated circuits; technical consultation in the fields of semiconductors, microprocessors, microchips, integrated circuits, and high speed mixed signal integrated circuits