computer hardware and embedded software sold as an integral component of computer hardware for use in accessing, displaying, recording, retrieving, receiving, storing, and transmitting audio, video, text, data, and entertainment services via local, wide area, and global computer and communications networks; embedded software sold as an integral component of computer hardware, namely, computer networking software, computer software for digital telephony, computer firewall software, computer network security software, router software, content screening software, unified messaging software, network configuration and monitoring software, computer configuration software; computer hardware; personal, home, and business computing devices and telecommunication devices, namely, network switches, phone filters, gateways, modems, hubs, routers, bridges, network adapters, and interface cards; accessories and equipment for digital subscriber lines, namely, DSL filters, modems, and repeaters; PBX equipment, namely, gateways and adapters; computer hardware and embedded software sold as an integral component of computer hardware for use in connecting users to local, wide area, and global computer networks; data networking equipment, namely, data packet transceivers, switches, phone filters, gateways, modems, hubs, routers, bridges, network adapters, and interface cards; computer hardware for digital telephony; instruction manuals supplied as a unit with the foregoing