Radio frequency identification equipment and systems for access control, stored value, identification and tracking purposes comprised of one or more of the following components; radio frequency tags, radio frequency cards, readers and writers for the foregoing goods, computer software for programming and operating the foregoing goods; scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers