What is the fucntion of a short term scheduler?

A short-term scheduler, also known as a CPU scheduler, is responsible for selecting which process or thread from the ready queue will be executed by the CPU next. It makes decisions frequently and quickly, often on the order of milliseconds, to ensure efficient CPU utilization and responsiveness. By prioritizing processes based on scheduling algorithms, the short-term scheduler helps balance system load and improve overall system performance. Its effectiveness directly impacts the system's throughput and response time for users and applications.