42 Computer network services; integration of computer systems and networks; development of software for secure network operations; providing temporary use of on-line non-downloadable operating software for accessing and using a cloud computing network; configuration of computer systems and networks; authentication services; consultancy and monitoring services in the field of telecommunications and computer networks; design, development and maintenance of computer hardware and software; provision of security services for computer networks, computer access and computerised transactions; troubleshooting in the nature of diagnosing problems with computer networking hardware and software; cloud computing