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The procedure for handling the page fault is as follows
1. We check the internal table to verify whether the reference was valid or invalid.
2. If the reference was invalid, we terminate the process.
3. We find a free frame.
4. We schedule a disk operation to read the wanted page into the newly allocated frame.
5. When the disk read is complete, change the internal table to indicate that the page is now in memory.
6. We start again the instruction.
why we say " OS is a resource allocator" and “OS is a control program"?
List the task regions in the Spiral model. Customer communication - In this region it is suggested to set up customer communication. Planning - All planning activities
what is the need-to-know principle? why is it important for a protection system to adhere to this principle?
defination
What is long-term, medium-term, short-term? In a batch system many processes are submitted than are able to be executed immediately. These processes are reel to a mass storage
Define a layer that is not of an IO management module MCS that is Management Control System is not of an IO management module
FIXED PARTITIONING Using fixed partitioning we are able to allocate the memory Here we are dividing the memory into a few fixed partitions.Every partition may not be of the si
Define LRU Page Replacement Algorithm LRU policy: LRU expands to least currently use. This policy suggests which we re- move a page whose last usage is farthest from current ti
I need help,i want a brief and easy explanation to understand and write in exams and easy to understand topic of DMA block diagram which Is of I/O management and scheduling? can u
Explain Rehashing to Handle Collision Rehashing: Re-hashing schemes make use of a second hashing operation while there is a collision. If there is an additional collision, we
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