42 Design and development of computer software for others; professional and technical consulting services in relation to computers, computer software, databases and database management, networking, programming and application development, user interfaces, client/server and remote computing applications, computer systems operations tools and utilities, global computer information network, enterprise, wide area and local area network access, operations and systems management, development tools and utilities, and monitoring, control and management of computer systems; maintenance and support services for computer software, namely telephone consultation, debugging computer software, updating computer software, providing an on-line database of reference information, and web sites, all in the fields of computers, computer software and computer systems; computer systems and computer software development consulting services