design, maintenance, rental and updating of computer software; development of IT security software; development of game software; development of software for data and multimedia content conversion from and to different protocols; development of computer software for data processing; development of application software for delivery of multimedia content; development of software for processing and distribution of multimedia contents; development of computer software for security management; development of software for secure network operations; development of video game software; software development, programming and implementation; software customisation services; design of online social networking software; software development of advertising/marketing for mobile terminals; development of computer game software; development of computer database software; development and testing of computer software; development of software for communication systems; development of computer software for big data processing; providing paas (platform as a service)