The world is growing faster with each passing day and moreover, with respect to technology, the future is in the hands of quantum world. The quantum world will make impossible things possible and have maximum tendency to bring the new revolution in almost all the fields in the near future. The book provides the basic concepts of quantum mechanics including postulates, operators, basic of formalism, quantum computation, virtual environment and biological simulations etc. This book will be helpful for the research scholars, engineering and PG students and also to those who love to keep themselves updated about the technology of the future.