1.3 - system software Flashcards
system software
1
Q
what does system software do?
A
manages hardware + software of PC.
2
Q
What is the OP responsible for?
A
memory,process,device managing.
3
Q
2 mechanisms memory management is done by?
A
pages and segmentation.
4
Q
What are pages
A
Blocks of fixed size memory that are referenced through a paging table.
5
Q
What does a paging table include?
A
page no and offset to physical memory
6
Q
What translates virtual address space to physical addresses and what is the formula that does this?
A
- memory unit
- address page = page no*page size +offset
7
Q
what allows blocks of memory to be used?
A
segmentation
8
Q
Are blocks of memory variable or fixed in size?
A
variable
