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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.
approaches to identify free memory area in a heap
A file system depends on data structures about the files, beside the file structure. The former is named metadata-data that defines data. Each file is accumulated with an inode, wh
Ask question #Minimuexplain the programable clock modes in a computer system m 100 words accepted#
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Write a short note on PCB? Every process is represented in the operating system by a process control block also called a task control block. It contains more information regard
what is secondary storage management
A system consists of 10 units of resource class Ru. The resource needs of three user processes P1, P2 and P3 are like this Using Banker's algorithm, de
What is a Process Control Block? Every process in the operating system is represented by a process control block as well called a task control block. It contains several pieces
Discuss the concepts of task decomposition and data decomposition within the context of parallel programming. Parallel programming or parrelel computing is the simultaneo
Define Program preemption The Forced de-allocation of the CPU from a program which is executing on the CPU is known as Program preemption
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