Electrical, electronic, optical, electro-optical, monitoring (other than in vivo monitoring), electrical control, testing (other than in vivo testing), signalling, measuring, checking (supervision), and teaching apparatus and instruments; telecommunications installations, apparatus and instruments; apparatus for recording, transmission, processing or reproduction of sound or images; cables and ducts, all for electrical, telecommunications or optical signal transmission; aerials; waveguides being electronic or telecommunications components; electronic apparatus and instruments, all for processing, logging, storing, transmission, reception and/or print-out of data; computers; microprocessors; electronic apparatus and instruments for management and/or performance analysis of telecommunications and data communications networks and circuits; encoding and decoding apparatus and instruments; discs, tapes, cards and wires, all being magnetic data carriers; discs, tapes and cards, all being optical data carriers; computer software; encoded programs for computers and for data processing apparatus; keyboards, transceivers and controllers; parts and fittings for all the aforesaid goods, all included in this class