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