This lecture covers hardware technologies and applications in quantum computing, focusing on the quantum stack, from fidelity to electronic circuit specifications, cryogenic electronics, quantum sensing, and metrology. It delves into classical computing development, quantum computing advancements, investments in quantum computing, commercial prospects, and the impact on society. The lecture also explores quantum algorithms, quantum information fundamentals, quantum-classical interfaces, solid-state qubits, and the quantum hype in the industry.