This book focusses on the complete range of concepts and technologies of computer science applied in modern pharmaceutical science. The book covers all the basic concepts of computers in Pharmacy. The book is the benchtop manual which will help the students to understand the aspects behind computers. Knowledge of the computer creates awareness among the pharmacist to make use of various monitors used to analyze the condition of the patient. The basic knowledge of computers improves the work efficiency of pharmacists as it reduces the time spent on the written text. It offers readers a unique framework and systems perspective from which they can devise strategies to thoroughly exploit the use of computers in their organizations during all phases of the discovery and development process. A new field of bioinformatics has emerged, and a chapter of the book attempts to explain it. The text aims to help students compete in todays world of technology and achieve success in computer-related occupations in whatever field they choose to pursue. Covering all important topics of academic interest, the current book has been written with the objective to provide students a broad spectrum of scientific information in a concise and systemic manner. The textbook focusses on the syllabus proposed by Pharmacy Council of India for B. Pharma students. Full effort has been made in the current textbook to cover the whole syllabus in most organized way explaining each and every topic in anticipated extent. We hope our best that our efforts will be somewhere helpful to the students and teachers in manifold.