42 Design for others in the field of network interface circuits, network interface chips, network interface software, audio and video players, audio amplifiers, electronic display devices, drives for data storage and retrieval, telephones, facsimile and data communication terminals, still and moving image cameras, instrumentation clusters, wireless data adaptors, handheld and portable computers, and navigational aids, namely, electronic maps, electronic route finders, traffic information terminals and navigation computers; programming, installation, maintenance and upgrading of network interface computer software for use in audio and video players, audio amplifiers, electronic display devices, drives for data storage and retrieval, telephones, facsimile and data communication terminals, still and moving image cameras, instrumentation clusters, wireless data adaptors, handheld and portable computers, and navigational aids, namely, electronic maps, electronic route finders, traffic information terminals and navigation computers; consultation services relating to the standardisation, design, manufacture, programming and testing of network interface circuits, network interface chips, network interface software, audio and video players, audio amplifiers, electronic display devices, drives for data storage and retrieval, telephones, facsimile and data communication terminals, still and moving image cameras, instrumentation cluster, wireless data adaptors, handheld and portable computers, and navigational aids, namely, electronic maps, electronic route finders, traffic information terminals and navigation computers; professional consultancy services in the field of hardware and software relating to standardisation, design, manufacture, programming and testing of network interface circuits, network interface chips, network interface software, audio and video players, audio amplifiers, electronic display devices, drives for data storage and retrieval, telephones, facsimile and data communication terminals, still and moving image cameras, instrumentation clusters, wireless data adaptors, handheld and portable computers, and navigational aids, namely, electronic maps, electronic route finders, traffic information terminals and navigation computers