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Outline

julius operating system.pdf

Abstract

Dispatch latency is the time takes for the dispatcher to stop one process and start another running. Interrupt is an event that alters the sequence in which the processor executes instructions. Protection refers to mechanism that control the access of programs or users to the both system and resources Deadlock state: A set of processes is in a deadlock state when every process in the set is waiting for an event that can be caused only by another process in the set. Safe state: A state is safe if the system can allocate resources to each process (up to its maximum) in some order and still avoid a deadlock. Resource allocation state: It is defined as the number of available and allocated resources and the maximum demands of the processes. Q2: Why are the programs and data not resided in main memory permanently? Answer There are two reasons: