Real-time systems are computer systems that must meet strict timing constraints in order to function correctly. These systems are used in a wide range of applications, such as industrial automation, telecommunications, and automotive systems. Real-time systems are typically classified into hard real-time systems, where missing a deadline can have catastrophic consequences, and soft real-time systems, where missing a deadline may degrade system performance but not cause system failure. Real-time systems require precise timing analysis, scheduling algorithms, and resource management techniques to ensure that tasks are executed within their deadlines. Real-time systems often rely on specialized hardware and operating systems to meet their timing constraints. Overall, real-time systems play a critical role in ensuring the timely and reliable operation of various systems and applications.