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How Virtual memory is implemented
Virtual memory can be implemented along with Segmentation and Paging
Q. What are the three main activities of an operating system in regard to secondary-storage management? Answer: 1) Free-space management 2) Storage allocation 3) Disk
Define Latency plus seek time The total time to arrange a disk drive mechanism for a block of data to be read from is its Latency plus seeks time
Write a script that uses this idea to print output similar to the following: Files in this directory that match *~ : bash-scripts.html~ chimpanzee~ countdown~ countd
Define Page stealing Page stealing is taking page frames another working sets
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. 50k 40k
Several schemes available are as follows: Pipes : One-way communication process through which different process can interact. The problem is that the two processes could have
People arrive at a barber shop at the rate of one every 4.5 minutes. If the shop is full (it can hold five people altogether), 30% of the potential customers leave and come back i
Hashed page tables A common approach for handling address spaces larger than 32 bits is to use a hashed page table. Every entry in the hash table having a linked list of elemen
Discuss the high barriers to entry in the market for PL operating systems
Since most of the programs require a lot of memory allocation/deallocation, we expect the memory management to be fast, to have low fragmentation, make good use of locality, and be
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