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 tutorial 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.
It is a very basic tutorial that assumes no prior knowledge on any concepts related to Computer
Science. Hence, there are no prerequisites whatsoever. This tutorial is entirely based on
reliable sources including books, relevant articles, and facts (taken from the official