Computer software development; development of game software; design and development of virtual reality software; development of virtual reality software; software development, programming and implementation; development of computer software for big data processing; developing and updating computer software; services for maintenance of computer software; application service provider (ASP); development of application software for delivery of multimedia content; development of video game software; rental of computer game software; maintenance of computer game software; design and development of computer game software; hosting the web sites of others on a computer server for a global computer network; design and implementation of web sites for others; designing and creating web sites