Fundamentals of Computer by Saurabh Agrawal is a publication of the SBPD Publishing House, Agra. In the present time, the Computer is an integral part of our lives. Much of the work we do now involves computers in one way or the other. Thanks to this piece of machinery, the world has shrunk into a global village. It gives the author great pleasure in presenting the First Edition of this book Fundamentals of Computer in the hands of students and their esteemed Professors. The present book targets to meet in full measure the requirements of students preparing for B.B.A., B.Com. and other Professional Courses of various Indian Universities. Salient features of this book are as follows- 1. The motto of this book is to provide the easy and obvious understanding of the subject to the students. 2. Every best effort has been made to include the questions asked in various examinations in different years. 3. The subject matter of this book is prepared scientifically and analytically. 4. Volume of the book and size of different topics have been kept keeping in view to meet out the need for examinations.