Micro-computers; computer monitors; host computer; microprocessors; computer data storage units in the nature of hard drives; computer disc drives; magnetic tapes and disks recorded with computer programs for database management in the field of communication; chassis for computer components; interface cards for data processing equipment in the form of printed circuits; computer hardware, namely, computer backplane, communication cards, network interface cards, switching boards and single board computer cards; industrial computers; apparatus for communication consisting of a server computer with enhanced networking interfaces for enabling computer gateway functions in the nature of network security, network management, multimedia communication, firewall, virtual private networking, loading balancing, bandwith management, content filtering, anti-virus, intrusion detection and prevention, and anti-spam functions; digital video recorders; single board computers, computer chassis and switching boards based on "Advanced Telecom Computing Architecture"; electric and electronic video surveillance installations