Description: The Process Scheduling Theory refers to the study of the principles and methods that determine how processes are managed and scheduled in computer systems. This theory is fundamental for optimizing CPU usage, ensuring that system resources are efficiently distributed among multiple tasks. Process scheduling involves deciding which processes should run at what time, as well as the duration of their execution. There are different scheduling algorithms, each with its own characteristics and objectives, such as minimizing wait time, maximizing throughput, or ensuring fairness among processes. The theory also addresses aspects such as process prioritization, interrupt handling, and resource management, making it an essential component for the design of modern computing environments. In summary, Process Scheduling Theory is crucial for ensuring that computer systems operate smoothly and efficiently, allowing multiple applications to run simultaneously without conflicts or performance losses.