Flashcards
Sem título
Flashcards do conjunto (5)
- 1How is Virtual Memory used?The computer is conned into thinking that there is more RAM than in reality by using secondary storage as RAM
- 2SegmentationCheck segmentation notes
- 3What is Paging?When a fixed size piece of memory (a page) is swapped from RAM to secondary storage
- 4Why is Disk Threshing/Thrashing Important?It slows down the processing speed because it has a high rate of disk access. only occurring when data is being transferred from virtual memory to/from disk memory it acts as a brake on the whole system because disk access is slow
- 5Why is Memory Management Important?1. Allows memory sharing
2. Manages memory allocation when segmentation or paging happens
3. To reallocate memory that it made available when e.g. a program stops running
4. Protects the OS
5. Provided security (by no. 4 ^)
6. Protects the data that is running from the processes which are running
7. Allows memory to be allocated to separate
Informações
- Descrição
- AS - Level Computing AS FlashCards sobre Sem título, criado por Andrew Bennett em 03-12-2015.
- Criado por
- Andrew Bennett · dez 2015
- Atualizado
- 23 nov 2016
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- 1
- Avaliação