Advisory services relating to computer hardware; advisory services relating to computer software; advisory services relating to computer systems design; back-up (copying) of computer data; computer co-location services; computer disaster recovery services; computer firewall services; computer network services; computer support services (computer hardware, software and peripherals advisory and information services); computer support services (programming and software installation, repair and maintenance services); computer time-sharing; computerised data storage services; development of computer software; development of computer systems; hosting computer sites (web sites); information technology (IT) services (computer hardware, software and peripherals design and technical consultancy); remote monitoring of computer systems; rental of computer equipment; rental of computer software