Electric and electronic control and regulating apparatus; electric switching amplifiers; apparatus for weighing and measuring out goods; measuring, testing and monitoring apparatus; electric power units, power supply units; computers and data processing equipment, computer hardware and computer peripheral devices; devices for displaying data, in particular monitors, text terminals and graphics terminals; data input and command input apparatus, in particular keyboards, mice and trackballs; apparatus for generating, recording, transmission and/or reproduction of images and/or sound or other signals; interfaces; printers, especially label printers; computer and monitor housings; scanners; barcode-readers, in particular reading pens, reading guns and card-readers; barcode decoders; computer graphics boards; electric cables and wires; connectors, connecting components for electric cables and lines; including all the aforesaid goods in explosion-proof form; explosion-proof housings and containers for electric and electronic devices; parts for all the aforesaid goods; computer software; computer programs recorded on data carriers of all kinds; machine-readable data carriers equipped with programs

Computer programming; computer programming and the development of special-purpose programs specific to the needs of the individual customer