[ Workstations comprising computers and computer printers; personal computers; notebook computers; handheld personal computers; ] single board computers; system boards, [ mother cards and processors; integrated circuits for data processing devices and computers; ] computer hardware for protecting data exchange between data processing devices against illegal or unauthorized access; intrusion detection computer hardware featuring intrusion detection systems comprised of operating software, network access server hardware, anti-spyware software, computer anti-virus software, computer hardware and peripherals, computer hardware, namely, firewalls, computer network adapters, switches, routers and hubs, computer network bridges, computer operating programs and computer operating systems, computer software for encryption, computer software for the creation of firewalls, computer software for remote maintenance of computer terminals, for remote maintenance of local area networks and for remote maintenance of wide area networks; computer hardware and software for creating virtual private computer networks; computer hardware for recording, transmitting and replaying data, sound and/or images; computers, [ handheld personal computers; computer hardware for data transmission by way of asynchronous transfer mode or integrated service digital network; computer programs for protecting data exchange between data processing devices against illegal access which are stored on optical data carriers or stored on magnetic data carriers or provided by computer download ]