Integrated circuits; printed circuit boards; computer software for the analysis of defects in disk drives and optical fibers; computer hardware; computers; monitors in the nature of hardware; semiconductors; blank smart cards in the nature of integrated circuit cards; circuit boards; electronic micro-circuits; substrated printed circuit boards; disc drives; software drivers; solid-state devices, namely, drives; solid-state memory devices, namely, memory cards, computer memories; light source panels for liquid crystal displays; light-emitting diodes (LEDs); optical fibres being light conducting filaments; light conducting filaments in the nature of optical fibers; light emitting diode displays and drivers; light exposure apparatus, namely, photographic exposure meters; light modulators, probes and sensors; light sensitive electrical relays; light-emitting diodes for use in drivers in the nature of computer hardware; power supply apparatus in the nature of transformers; electrical transformers for use with lighting; regulating transformers; transformer units; voltage transformers; power supply units comprising transformers; analogue to digital converters; switch mode electric converter; adaptors for converting alternating current to direct current and adaptors for converting direct current to alternating current