The course focuses on superconducting electrical systems for quantum computing. Contents begin by reviewing required concepts in microwave engineering, quantum optics, and superconductivity and then proceed with deriving quantum mechanical descriptions of superconducting linear circuits, Josephson qubits, and parametric amplifiers. The second part of the course provides an overview of integrated nano-mechanical, piezo-electric, and electro-optic systems and their applications in transducing quantum electrical signals from superconducting qubits.