42 Rental of computer software, of computers, rental of electronic and data processing installations, rental of programs on computer media and via telecommunications; design (development) of data and word-processing programs for companies; design and development of virtual and interactive images, of securement and telecommunication systems; creation and maintenance of Websites for others, hosting of Websites; database reconstruction; technical standardization services, namely elaboration and design of standards for televised and radio-broadcasting communications, of standards for computer communication and computing; electronic programming, computer program copying; engineering services; software application transposition services (computer programming services); computer software development (design), updating of computer software, maintenance of computer software, consulting in the field of computer hardware, computer programming, installation of computer software; copyright management, exploitation of patents, namely transfer (provision) of know-how, granting of licences; technical support for operating and monitoring computer networks, technical assistance in the fields of computer science and telecommunications; technical assistance for improving implementation conditions for data, sound and image recording, reproducing and processing apparatus, telecommunication terminals, database servers, provider centers for access to computer or data transmission networks, for improving the monitoring and efficiency of the above apparatus and instruments; telecommunications-related research, technical consulting and advice in the field of computing, technical consulting services in the field of computers; technical studies for all computing work, technical project studies, computer and telecommunications systems design; technical studies and research in the field of computer and telecommunication equipment operation and maintenance, technical consulting in the field of implementing data processing, telecommunication or safety equipment, legal research; certification and authentication (control) of messages and data transmitted via telecommunications; certification (quality and origin control, attestation of conclusion of contracts); computer system configuration analysis; data conversion of computer programs and data (not physical conversion), conversion of data or documents from physical to electronic media; arbitration services, graphic arts design services