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What is CPU sheduling algorithm?
Basically,this is a need in case of multiprogramming.For optimum utilization of CPU it should be utilised in the meanwhile time when some process is in waiting state for some I/O or waiting for some event to occur. So,for this many programs should be in memory in waiting state so that CPU can be allocated to some other process for optimum utilization of CPU. A schedule(time table in broad sense) which will decide Cpu will be allocated to which process when some previous process is in waiting state. Now this schedule is designed according to some criteria(algorithm) to decide CPU will be allocated to which process. Some Algorithms: 1.First Come First Serve(FCFS) 2.Shortest Job Scheduling(SJS) 3.RoundRobin Scheduling(RRS)
What is the waiting state of a process?
The waiting state of a process occurs when it is ready to execute but is waiting for a resource, such as input/output operation to complete or a signal from another process. While in this state, the process cannot make progress until the required resource becomes available.
When a process waits for an input output operation to complete then it is called?
When a process waits for an input/output operation to complete, it is referred to as being in a "blocked" or "waiting" state. During this time, the process cannot proceed with execution until the I/O operation finishes. This state is critical for managing resources and ensuring that processes do not consume CPU time while waiting for I/O.
What is Process transition in the Operating system?
Moving from one process state(like Ready state, running state, termination state) to another process state. Process transition may occur due to different purposes like if a process: waiting for I/o operations, waiting for data from disk(moved to blocked state from running state and stays there until data extraction process in not over), or if there left no instruction in the process to be executed....then it moved to termination state from running state, If a process is in running state and at that time it is interrupted by another process, then process move from running state to ready state(join queue again and waiting for its turn again).
Can we determine the state of a process by the hardware or queues that this process is associated with at a given time?
yes. ready state in ready queue, waiting state in waiting queue , only one exception is the running state, no queue corresponding to .
Different states of a process?
In computing, if a processor is running and doing a number of activities, those activities are known as its states. As a processor executes, its state changes. There are number of states like New state i.e. creation of new process, Running state i.e. execution of instructions, Waiting state i.e. its a state where processor is waiting for some activity to occur, Ready state i.e. in this a particular process has acquired the resources and is waiting to be assigned to a processor, Terminated state i.e. the execution of a process has completed.
Why is the process table needed in a time sharing system?
From memory: Process table holds all the processes in the machine - that are either 'waiting' or 'ready' to be processed. A time-sharing system gives processes a time-slice or quantum. Processes can only be executed within this time frame, once it expires, the CPU receives an interrupt signal, the CPU saves its current state in the current process and focuses on the interrupting entity (another process). The scheduler adds/removes new processes to/from the process table as it goes. I think that's the gist of it~
What are the Process states?
A process which is Executed by the Process have various States, the State of the Process is also called as the Status of the process, The Status includes whether the Process has Executed or Whether the process is Waiting for Some input and output from the user and whether the Process is Waiting for the CPU to Run the Program after the Completion of the Process.The various States of the Process are as Followings:-1) New State : When a user request for a Service from the System , then the System will first initialize the process or the System will call it an initial Process . So Every new Operation which is Requested to the System is known as the New Born Process.2) Running State : When the Process is Running under the CPU, or When the Program is Executed by the CPU , then this is called as the Running process and when a process is Running then this will also provides us Some Outputs on the Screen.3) Waiting : When a Process is Waiting for Some Input and Output Operations then this is called as the Waiting State. And in this process is not under the Execution instead the Process is Stored out of Memory and when the user will provide the input then this will Again be on ready State.4) Ready State : When the Process is Ready to Execute but he is waiting for the CPU to Execute then this is called as the Ready State. After the Completion of the Input and outputs the Process will be on Ready State means the Process will Wait for the Processor to Execute.5) Terminated State : After the Completion of the Process , the Process will be Automatically terminated by the CPU . So this is also called as the Terminated State of the Process. After Executing the Whole Process the Processor will Also deallocate the Memory which is allocated to the Process. So this is called as the Terminated Process.
What is a dead lock in os?
A process request request resources ,and if the resources are not available at that time ,teh process enters a waiting state.Sometimes ,a waiting process is never agian able to change state,becoj teh resources it has requsted are held by other waiting process .This situation is called deadlock.
Can a process make a transition from the ready state to the blocked state?
Yes, a process can transition from the ready state to the blocked state. This occurs when the process is waiting for an event such as user input or completion of I/O operations. Once the event occurs, the process can then transition back to the ready state to continue execution.
Who enacted the utilization review of 1977?
state legislature
What is dynamic process and static process?
A dynamic process is one where the state of the system changes over time, while a static process is one where the system remains in a constant state. Dynamic processes are characterized by evolving variables, such as movement, growth, or change, while static processes do not involve any change or movement.
