42 Computer consultation services and computer design services, relating to assessment, design, implementation, integration, testing, monitoring of local area networks, wide area networks, voice, video and data telecommunications networks and computer sites on a global computer network and on internal or restricted network environments; information technology consultation services, namely, providing information in the field of information technology and related subjects to the public by computers and electronic means; computer consultation services, namely, consulting on the application and implementation of computer systems; installation and maintenance of computer software; custom design of computer software and computer systems; design services relating to the development of computerized information processing systems and to developing computer systems for others; computer programming services for others; testing and analysis of computer systems concerning their performance, error-handling ability, interoperability, and compatibility