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Additional-reference-bits algorithm
We can keep an 8-bit byte for every page in a table in memory. The operating system shifts the reference bits right 1 bit, discarding the low-order bit. These 8 bits sift register have the history of page used for previous eight time periods. A page with a history value of 11000100 has been used more just than has one with 01110111. The page with the lowest number is the LRU page, and it can be changed.
why we say OS is a resource allocator and control program
Q. In a disk jukebox what would be the result of having more open files than the number of drives in the jukebox? Answer: Two bad results could result. One likelihood is star
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Ask question #Minimum 100 words accepted application of bounded and unbounded buffers
Determine a processing that is not a part of Synthesis phase Perform LC processing is not a part of Synthesis phase
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