This lecture introduces the experimental realizations of systems for quantum information processing (QIP), focusing on superconducting quantum electronic circuits. It covers basic concepts of QIP, superconducting qubits, physical implementations for QIP, and the goals of the lecture. The course aims to convey fundamental concepts of QIP, discuss physical systems used for QIP, and explore basic experimental techniques to realize and characterize quantum systems. It also delves into the differences between classical and quantum computing, emphasizing the unique encoding of information in quantum computers. The lecture includes exercises to apply concepts to models close to actual quantum machines and provides reading materials for further understanding. The content of the exam and the current challenges in scaling up qubit numbers are also discussed.