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What are the various page replacement algorithms used for page replacement?
approaches to identify free memory area in a heap
What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
Write a short note about the different STATES of a process. As a process implement it changes state. The state of a process is described in part by the current activity of that
How Memory utilization factor shall be computed Memory utilization factor shall be defined as Memory in use/total memory connected
What is a multiprocessing system? Multiprocessor systems are those systems that use additional than a single processor for program execution. It is done for raising the executi
Explain about demand paging? A demand paging system is same to a paging system with swapping. Processes reside on secondary memory. When we require executing a process, we chan
Explain DosCreateThread Functions Used in the OS/2 DosCreateThread(&threadID,MyThreadFunction,arg,flags,stackSize) DosCreateThread creates a thread within the context of th
What are the operations of processes? Process creation A process may create several new processes. The creating process is called as parent process, where as the new proce
Define caching. A cache is a region of fast memory that holds copies of data. Access to the cached copy is well-organized than access to the original. Caching and buffering are
Second-Chance algorithm When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, thoug
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