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Basic concepts
When a process is to be changed in, the pager guesses which pages will be used before the process is changed out again. Instead of swapping in a entire process, the pager brings only those essential pages into memory. The valid-invalid bit scheme can be used to distinguish among pages that are in memory and those pages that are on the disk. Access to a page marked unacceptable causes a page-default trap. This trap is the result of the operating system's failure to bring the needed page into memory.
what is ROM bios device driver
Q. Definition of Operating System? Definition of Operating System: • An Operating system is a program which controls execution of application programs and acts as an interfa
what is the function of operation management?
Write a note on semaphores A semaphore is a tool meant for synchronizing multiple processes trying to access a shared variable. That is a semaphore is used to deal with the cri
explain how response time are reduced by allowing time sharing on top of multiprogramming
What is parsing Parsing is the procedure of analyzing a text, made of a sequence of tokens, to define its grammatical structure regarding to a given formal grammar. Parsing is
Q. Remapping of bad blocks by sector sparing or else sector slipping could influence performance. Presume that the drive in Subsequent Exercise has a total of 100 bad sectors at r
What is input output operation ?
Define a layer that is not of an IO management module MCS that is Management Control System is not of an IO management module
approaches to identify free memory area in a heap
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