Computer Science is one of the disciplines of modern science under which, we study about the various aspects of computer technologies, their development, and their applications in the present world. Likewise, Computer Science includes a wide range of topics such as the development of Computer Technology (hardware and software), application of Computer technology in today's life, information technology, computer threat, computer security, etc. However, we have segregated this tutorial into different chapters for easy understanding.

This book is designed exclusively for the students preparing for the different competitive exams including civil services, banking, railway, eligibility test, and all other competitive exams of such kind.