The 27th International Conference on Computer Theory and Applications (ICCTA 2017) will be organized by the Computer Scientific Society (CSS) with technical co-sponsorship by IEEE Alexandria subsection. The purpose of ICCTA 2017 is to serve as a multi-disciplinary forum for the exchange of information on research, development, and applications of all topics related to computer theory and its applications. ICCTA 2017 provides opportunities for researchers, specialists and vendors of Information Technology to get together and exchange ideas and expertise.