9 [Apparatus for recording, transmission and reproduction of data, sound and image; communication apparatus, namely, radio transmitters, radio receivers, antenna and modems; blank magnetic data carriers; calculating machines, data processing devices, namely, data processors: computers; ancillary devices for data processing, namely, optical data readers, data storage devices in the nature of blank CD ROMs for storage, printers, computer monitors, optical scanners, data carriers with the nature of blank diskettes, CD ROMs, DVDs and computer programs recorded on diskettes, CD ROMs and DVDs for running algorithms to analyze batches of data; computer software for data processing in the field of agriculture; electronic apparatus, namely, blank magnetic carriers, optical carriers and video tapes for recording data; data processing equipment, namely, computers; voltage testers, electric cables, electrical wires, electrical switch plates, pressure switches for controlling pneumatic systems, fuses, computer parallel ports, electrical plugs, thermostats, electric meters, electric sensors, transformers; tachometers; diagnostic equipment, namely, computers for controlling electronic and mechanical agricultural machinery and structural parts thereof; computer software programs for diagnosing operational problems with electronic and mechanical agricultural machinery]