Electric and electronic devices and instruments for recording, playback, treatment, transmission, storage, display, input, output and print-out of data; computer and data processing devices as well as printers appertaining thereto; cards, disks, tapes, threads, microchips and electronic switching circuits for data input; computer programs containing data carriers, namely punch tapes, large and small punch tapes, punch cards, magnetic tapes, magnetic foils, magnetic disks and diskettes; parts in this class of all the aforementioned products.