Computer data storage apparatus; computer hardware; computer installations (networks); computer installations for the communication of data; computer network apparatus; computer network installations; computer networks; computer networks for the communication of data; computer networks for the processing of data; computer networks for the storage of data; computer workstations (apparatus and installations); computers; data storage apparatus for computers; housings for computers; installations for use in forming computer networks; installations for use in the networking of computers; linked computer networks; linking units for computers; multiprocessor computer apparatus; network controllers being computer apparatus; network management computer software; work stations (computer apparatus); work stations (computers)

Information technology (IT) services (computer and computer peripherals installation and maintenance); installation and repair of computer hardware; installation of computers; installation, maintenance and repair of computer hardware; maintenance and repair of computers; maintenance of computers; maintenance services relating to computer hardware