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Andrew Bennett Computing AS AS - Level English 5 cards

Cards in this deck (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

Description: AS - Level Computing AS Flashcards on Untitled, created by Andrew Bennett on 03/12/2015.
Created by: Andrew Bennett · Dec 2015
Updated: Nov 23, 2016
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