data storage disk arrays featuring magnetic, disk drives, and electrical and mechanical interconnect for such drives; computer hardware for digital disk backup; data storage media controller boards, namely, printed circuit boards and electrical/electronic components thereon; plug-in data storage subsystems featuring electrical and mechanical interconnect with media drives, namely, disk drives, controllers and bus interface chips; bus interface chips, namely, integrated circuit chips; application-specific integrated circuits; computer network controller integrated circuits; host computer adapter boards, namely, printed circuit boards and electrical/electronic components thereon; computer hardware, namely, data storage arrays for use in global and local networks; computer software, namely, device drivers for operating the above products, and computer network management utilities software; and user manuals sold with the above products and sold with the above computer software