Flashcards
Process management & Scheduling (A Level Computing)
Flashcards do conjunto (5)
- 1What is First Come First Served?Each process is queued in order of arrival and then processed till completion.
It is easy to implement but very inefficient - 2What is Round Robin?This is where each process is given a set amount of time and the processor is switched to each process in a circular method. It is easy to implement but it can be inefficient.
- 3What is Shortest Job First?This is when the job executing time is known or estimated. When the processor is free the next shortest job is executed. This means the short jobs are executed quickly but the long jobs could experience processor starvation.
- 4What is Multi-level Queue?When a job arrives it is allocated a priority. Usually dependant on process type, amount of CPU time needed, I/O access or memory size. Depending on priority it is allocated a queue.
- 5What is a Multi-level Feedback Queue?Allows a processor to change the priority of a job being performed and moving it to another queue. A bit like a fast pass at Thorpe Park.
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- GCSE Computing FlashCards sobre Process management & Scheduling (A Level Computing), criado por Ted Smith em 09-10-2019.
- Criado por
- Ted Smith
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