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What is reference string
We evaluate an algorithm by running it on a definite string of memory reference and computing the number of page faults. The string of memory references is known as a reference string.
Explain Swapping Swapping is a method of temporarily removing inactive programs from the memory of computer system.
In modern operating systems, applications do not directly access the physical memory. Instead, they use so-called virtual memory, where each virtual address is translated to a phys
Explain Deadlock Every process in a set of processes is waiting for an event which only a process in the set can cause.
explain in detail about ipc in linux
How does a program execution take place in multiprogramming? While the processor is dealing with a number of programs, the sequence with which programs are implemented will de
Demand paging With demand paging, a page is called into memory only when a location on that page is actually indexed during run time. With pre-paging, pages other than the one
What is the main function of the memory-management unit? The runtime mapping from virtual to physical addresses is done by a hardware device known as a memory management unit (
Which are the different states of a process? Different status of a process is: New: When the process is created. Running: When instructions are executed. Wait
what is multiprogramming
what is the use of valid invalid bits in paging
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