Educational and instruction services, namely, conducting classes, seminars and workshops in the field of computer hardware and software, modeling machines, cutting plotters for use as sign makers, combination ink jet printers and cutters, combination thermal printers and cutters, ink jet printers, plotter printers, computer printers, three dimensional scanners and x-y plotters; organization and arrangement of seminars, classes and workshops relating to arts, crafts, sports or general knowledge, namely, in the fields of computer hardware and software, cutting, drilling, grinding, printing, modeling, engraving, woodworking, stone working, metalworking machines and processes, and industrial manufacturing and fabrication through the use of computers