Computer support services (installation repair and maintenance of computer hardware and peripherals); Information technology (IT) services (computer and computer peripherals installation and maintenance); Installation, maintenance and repair of computer peripherals; Installation of data network apparatus; Installing of electronic communications networks; Maintenance and repair of data communications networks; Installation and repair of telecommunication apparatus; Maintenance and repair of telecommunications apparatus; Installation of communications network apparatus; Installation of computers; Installation, maintenance and repair of computer hardware; Maintenance and repair of computers

Computer support services (computer hardware, software and peripherals advisory and information services); Information technology (IT) services (computer hardware, software and peripherals design and technical consultancy); Computer network services; Computer security services (testing and risk assessment of computer networks); Back-up (copying) of computer data; Computerised data storage services; Data security services (firewalls); Electronic data storage; Recovery of computer data; Advisory services relating to computer software; Computer security services (design and development of secure computer hardware, software and systems); Computer support services (programming and software installation, repair and maintenance services); Diagnosis of faults in computer software; Installation of computer software; Maintenance of computer software; Providing information, including online, about design and development of computer hardware and software; Repair of computer software; Updating of computer software; Advisory services relating to computer hardware; Computer advisory services; Computer consultancy services; Information technology (IT) consultancy