Rental of computer hardware; Rental of computer software; Repair of computer software; Software engineering; Updating of computer software; Upgrading of computer software; Writing of computer software; Design and development of computer software (for others); Diagnosis of faults in computer software; Advisory services relating to computer hardware; Advisory services relating to computer software; Computer software advisory services; Computer software programming services; Computer consultancy services; Computer program updating services; Computer software consultancy; Computer support services (computer hardware, software and peripherals advisory and information services); Computer support services (programming and software installation, repair and maintenance services); Consultancy in the design and development of computer software; Design and development of computer hardware (for others); Design of computer software; Development of computer software; Information technology (IT) services (computer hardware, software and peripherals design and technical consultancy); Installation and maintenance of computer software; Providing information, including online, about design and development of computer hardware and software; Online provision of web-based software