42 miscellaneous services computer consultation; technical consultation in the field of computer systems and networks and in the filed of information systems; computer site design; computer installation; custom and retail computer software development; information and communications network access provider, namely, Internet services provider, Intranet services provider; information systems installation and implementation; retail sale services in the field of computer systems, networks, hardware, peripherals, and software, namely, retail sales of mainframe, midrange, and personal computer systems; cross-platform retail sale services; retail sale services and installation of local and wide area network components; retail sale services of imaging systems, namely, photocopiers and facsimile equipment