What is xx series

The "What is..." series serves as a comprehensive technical encyclopedia designed to demystify complex concepts across the broad spectrum of electronics and engineering. Moving beyond product specifications, this collection delves into the fundamental principles, working mechanisms, and real-world applications of diverse technologies—ranging from sensing methods and communication protocols to emerging hardware innovations. Whether explaining the physics behind a component or comparing different standards, this Wiki provides essential knowledge for developers, students, and engineers seeking to understand the underlying science of technology.