Electric, electronic, optical apparatus and instruments; apparatus for recording, transmission, processing and reproduction of sound, images or data; a broadband video conditional access system, comprised of one or more of the following components; broadband video scrambler, master monitoring unit, pilot generator, comb generator, addressable control computer and system control software; subscriber descrambling unit, handheld remote control, computer keyboards, and interactive software for subscriber applications including on-screen program guides, pay-per-view and Internet access; scientific, nautical, surveying, photographic, cinematographic, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers