9 Computer aided design (CAD) software for engineering, design and manufacturing applications for operating instruments and machinery; computer programs and computer software for operating instruments and machinery engineering, design and manufacturing applications; computer software development tools for operating instruments and machinery for engineering, design and manufacturing applications; computer hardware and computer peripheral devices for engineering, design and manufacturing applications; computer software for operating instruments and machinery for engineering, design and manufacturing, and instructional manuals sold as a unit; downloadable electronic educational publications, namely, instructional manuals in the fields of engineering, design and manufacturing applications and computer software for operating instruments and machinery; downloadable webinars in the fields of engineering, design and manufacturing applications and computer software for operating instruments and machinery; compact discs featuring interactive tutorials in the field of engineering, design and manufacturing applications and computer software for operating instruments and machinery; electronic software updates, namely, downloadable computer software for operating instruments and machinery and associated data files for updating computer software in the fields of engineering, design and manufacturing applications and computer software for operating instruments and machinery; three dimensional digitizing units in the nature of digital input and output scanners for use in engineering, design and manufacturing applications; computer aided design software for engineering, design and manufacturing applications; computer programs for use in creating graphics, drawing, multimedia presentations, and video, all for engineering, design and manufacturing applications; multimedia software recorded on CD ROM featuring user manuals and interactive tutorials in the field of computer aided design for engineering, design and manufacturing applications