OS Synchronization and Scheduling

Computers are always executing processes. The operating system manages these processes and determines the resource usage for them. To ensure that resources are not wasted, the operating system employs a scheduler that schedules the processes in such a way that the resources do not remain idle and lead to waste. It makes sure that processes keep getting scheduled from ready to running states and resources are in constant use. The systems which employ this mechanism are termed multiprogramming systems.