The author, Radha Saini, is a well-qualified person with a keen interest in Computer Science and Information Technology field. She was awarded BCA from Aggarwal PG College, Faridabad, MCA from Advanced Institute of Technology and Management, Palwal and M Tech from Delhi College of Technology and Management. Her knowledge and understanding of the subject can be easily evaluated by the fact that she achieved the highly recognized Top University Rank from MDU, Rohtak during her MCA and M Tech studies. She actively participates in various national and international seminars and has presented her research there. She is presently working as an Assistant Professor at Pt J.L.N Government College, Faridabad. She showed deep interest in the area of Discrete Mathematics and eventually she decided to pen down her knowledge to make it beneficial for the students of Masters of Computer Science. The presentation and analogies are kept so simple that even the students with little or no prior knowledge will be able to get full benefit of this book.  The book is designed to cover the updated syllabus for Masters of Computer Science. This book will again be updated during the next edition in near future as and when required.