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); advisory services relating to computer hardware; advisory services relating to computer programming; advisory services relating to computer software; advisory services relating to computer systems design; computer network services; computer program advisory services; computer program maintenance services; computer programming; computer programming consultancy; computer software design; computer software development; computer software programming 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 system design; computer systems analysis; design of computer databases; design of computer hardware; design of computer languages; design of computer programs; design of computer software; development of computer programmes; development of computer software; development of computer software application solutions; development of computer systems; installation and maintenance of computer software; installation of computer software; maintenance of computer programs; maintenance of computer software; modifying of computer programs; repair of computer software; testing of computer installations; testing of computer programs; testing of computers; updating of computer programs; updating of computer software; upgrading of computer software; writing of computer programs; writing of computer software