computer hardware; computer chassis; open frame chassis for enclosed electrical modules; enclosed electrical modules; power modules; line modules; switch modules; control modules; electrical module casings; computer software; computer software for visualizing a computer network; computer software for discovering devices connected to a computer network; communication routers, switches, gateways, computers and modems; fiber optic cables, connectors and filters; fiber optical networks comprised of hubs, switches and fiber-to-electrical media converters, communication hubs, communication routers and switches having mixed fiber optical and electrical media ports; computer network hubs, switches and routers having fiber optical ports; computer hubs, routers and switches having mixed fiber optical and electrical media ports; fiber optical Ethernet networks comprised of hubs, switches, fiber-to-electrical media converters, serial to Ethernet servers, communication hubs, communication routers, computer hubs, computer network routers, switches and serial to Ethernet servers having mixed fiber optic to electrical media ports, and components therefor; computer network hubs, switches and routers having optical ports and components therefor; computer hubs, routers, switches, serial to Ethernet servers and serial device servers having mixed fiber optic and copper ports; video encoders; fiber optic to cable converters; fiber optical to electrical media converters; serial to Ethernet gateways; serial device servers

on-line retail store services featuring fiber optical networks, routers, switches, gateways, modems, fiber optic cables, connectors and filters, fiber optical networks, fiber optical Ethernet networks, computer hardware, computer software and communication equipment; computerized on-line retail store services in the field of fiber optical networks, routers, switches, gateways, modems, fiber optic cables, connectors and filters, fiber optical networks, fiber optical Ethernet networks, computer hardware, computer software and communication equipment; online retail store featuring communication routers, switches, gateways, computers, modems, fiber optic cables, connectors and filters, fiber optical networks, fiber optical Ethernet networks; retail store services featuring fiber optical networks, routers, switches, gateways, modems, fiber optic cables, connectors and filters, fiber optical networks, fiber optical Ethernet networks, computer hardware, computer software and communication equipment; exhibition of fiber optical networks, computer hardware, computer software and communications equipment for retail purpose on communication media; providing on-line business information featuring fiber optical networks, computer hardware, computer software and communications equipment; sales promotion featuring fiber optical networks, computer hardware, computer software and communications

monitoring of network systems; diagnostic services for network system; computer network design for others; computer network consulting services; computer networking management; communication network consulting services; communication network management; monitoring of computer network systems for system failure or decrease in performance; monitoring of the performance and physical structure of a computer network; monitoring of computer network systems for security purposes