This lecture introduces the concept of superconducting digital electronics, highlighting their fast operating speed and low power consumption. The instructor discusses the main advantages and disadvantages of superconducting electronics, emphasizing the cryogenic operation and cooling costs. The lecture also covers the power consumption comparison between Google and global electricity usage, as well as the potential of superconducting technology in achieving exascale computing. Furthermore, historical developments such as Cryotron and Josephson logic are presented, showcasing the evolution of superconducting electronics.