Computer Science is concerned with the study of everything to do with computers and people's relationship with them. Computer scientists are critical to the efficient running of modern societies, dealing with health, security, banking and finance, transportation, and now increasingly people's interaction through social networks. Computing professionals deal with theoretical issues, solve complex problems, deal with matters of ethics and with society at large. Theoretical issues in computer science relate to the abstract notions of computation and information.

The study of these issues leads, for example, to efficient and robust algorithms for problems in many areas. Applications of computer science range from artificial intelligence to health informatics, from smart cities to information security, and from educational and training systems to analysis of content on social network sites.