Computer consultancy; consultancy in the field of computer hardware; consultancy in the field of computer software; computer analysis; computer design; computer engineering; computer systems analysis; computer system design; computer security services (design and development of secure computer hardware, software and systems); 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; development of computer based networks; software engineering; installation of computer software; maintenance of computer software; updating of computer software; upgrading of computer software; diagnosis of faults in computer software; database design; computer disaster recovery services; recovery of computer data; data conversion of computer programs and data (not physical conversion); conversion of data or documents from physical to electronic media; rental of computer hardware; rental of computer software; on-line provision of web-based software; hosting computer sites (web sites); web portal services (designing or hosting); information services relating to computers; operating search engines; provision of search engine services; research relating to technology