42 Design and development of computer software; computer programming services; software programming services; software maintenance services; troubleshooting and maintenance of computer software; engineering services; testing, analysis and evaluation of materials; calibration of scientific, electronic, opto-electronic, photonic, and nano-scale test, signaling, analysis, imaging, measurement, and optical, apparatus, instruments, systems, equipment, parts, components, and accessories; technical support services, namely, providing information, consultation, design and diagnostic services in the fields of electronic, opto-electronic, photonic, and nano-scale test, signaling, imaging, and measurement apparatus, instruments, systems, equipment, parts, components and accessories, and providing an Internet website related thereto; technical support services, namely, providing information, start-up assistance, consulting and analysis of test, measurement, and system requirements, system design, systems integration, and systems installation; computer services, namely, hosting online forums for users to obtain information in the fields of electronic test, signaling and measurement equipment; providing a website that gives users the ability to generate and share software script and plug-ins and to share software and data with other users