Wide screen projectors, monitors, high frequency equipment for cable head-ends for cable television, professional audio apparatus, high resolution monitors and electronic display systems for specific applications; graphics generators; computers, peripheral equipment and programming systems (hardware and software) for control, integration and optimisation of printing procedures and production processes, such as manufacturing printed circuits and applying conduction patterns to insulation media, all of the above according to specific techniques; electronic systems for controlling quality electronic machines and sensors; laser tracers for application of conduction patterns to insulation media