42 Computer services, namely, remote hosting of computer operating systems and computer software applications and data of others for use in the fields of modelling and simulation on a computer server for a global computer network; computer services, namely, remote hosting of computer operating systems and computer software applications and data of others for use in carrying out simulations on a computer server for a global computer network; writing, designing, developing and producing computer software as well as design and development of computer hardware for use in the field of modelling and simulation; writing, designing, developing and producing computer software as well as design and development of computer hardware for use in carrying out simulations; scientific analysis and research services in the field of modelling and simulation of military operations, defense strategies, combat, warfare, security procedures, and military and defense training exercises and activities; scientific analysis and research services in relation to simulations of military operations, defense strategies, combat, warfare, security procedures, and military and defense training exercises and activities; scientific software research in relation to modelling and simulation of military operations, defense strategies, combat, warfare, security procedures, and military and defense training exercises and activities; scientific software research in relation to simulations of military operations, defense strategies, combat, warfare, security procedures, and military and defense training exercises and activities; computer programming; computer system design; computer software design; maintenance and updating of computer software for modelling and simulation of military operations, defense strategies, combat, warfare, security procedures, and military and defense training exercises and activities; scientific and technological modelling and simulation services, namely, virtual testing of new product designs using computer simulations; custom design of prototypes; design of computer-simulated models; virtual testing of new product designs using computer simulations; providing temporary use of online non-downloadable simulation software for modeling military operations, defense strategies, combat, warfare, security procedures, and military and defense training exercises and activities; providing information, advisory and consultancy relating to all the aforesaid services; all of the aforesaid for use in the aerospace, defense and military sectors