Virtual Memory Flashcards
1
Q
What is virtual memory?
A
part of he secondary memory which is used as an extension to the RAM.
2
Q
When is virtual memory used?
A
When the RAM is full to keep wanted programs open and running
3
Q
What needs to happen before the data in the virtual memory is used?
A
it needs to be transferred back to the RAM
4
Q
What can we do to overcome the use of virtual memory?
A
- quit programs
- add RAM
5
Q
What is disk thrashing?
A
having to keep switching from secondary storage and RAM, slowing down the machine. It often happens when secondary storage is used with pages and segments
