Quantum Computing represents one of the most exciting and transformative developments in modern science and technology. By harnessing the principles of quantum mechanics, quantum computers offer the possibility of solving certain complex problems that are beyond the practical capabilities of even the most powerful classical supercomputers. This revolutionary approach has attracted significant attention from researchers, governments, technology companies, and industries worldwide, making it one of the most promising fields of the twenty-first century. Quantum Computing has been written to provide students, educators, researchers, and technology enthusiasts with a comprehensive introduction to the concepts, principles, technologies, and applications of quantum computation. The book aims to present complex quantum concepts in a clear, structured, and accessible manner while maintaining the academic rigor necessary for higher education and professional learning. Mr. M. Rajeshkumar Dr. R. Mariappan Mr. E.Janakiraman,