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Information Technology is a broad academic field encompassing computing technologies and development in their diverse relations to the human and social worlds, including applications in science, social problems, and the arts. Information Technology when applied to study other disciplines by developing computerized systems is called Informatics. Thus, we have Bioinformatics, Business informatics, Cheminformatics, Development informatics, Ecoinformatics, Education informatics, Environmental informatics, Health informatics, Social informatics, and so on. Basic knowledge of informatics is now an essential tool discipline like Mathematics. The book Basics of Informatics is indented to provide IT literacy to graduate level students. It provides essential information about computer hardware, software and computer networks in four modules: Introduction to Informatics, Basic Hardware and Software, Operating Systems, and Networking and the Internet. The fourth module also explains the various search engines as well as social networking. Appendices as well as sample question papers included in the book should make it an ideal textbook to prepare students for their examinations. It is an essential book for everybody to acquire the fundamental aspects of Information Technology needed in almost every vocation, be it engineering, health and medical sciences, or business. It helps in ensuring expeditious flow of communications.