41 Development and dissemination of educational materials in the field of computer hardware and software; publication of books and magazines; electronic publishing services, namely, publication of multimedia works of others on CD-ROMs, floppy diskettes and magnetic tapes in the field of computer hardware and software; educational services, namely conducting seminars and workshops featuring information for use by computer professionals and other persons seeking certification, training and information in the field of computer hardware and software, and distributing course materials in connection therewith