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Define LRU Page Replacement Algorithm LRU policy: LRU expands to least currently use. This policy suggests which we re- move a page whose last usage is farthest from current ti
What is external fragmentation? As process are removed from and loaded to the memory free memory space is bracken into pieces .external fragmentation take place when enough mem
Contiguous allocation: Every file will be allocated contiguous space in the memory. Allow the block size be 1K If a 50K files desires to be allocated space after t
Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Problem: a) The CPU can access 2 storage devices directly. What are these 2 storage devices? b) Define 2 key issues involved in memory management. c) How do processes sha
summary of what operating system do
Determine a critical section is a program segment Critical section is where shared resources are accessed
Explain Structure The Grammar for programming language is a formal description of Structure
Explain Formal Language Grammar A formal language grammar is a set of formation rules which explain which strings formed from the alphabet of a formal language are syntacticall
What is an operating system and what are the different types of operating systems? Operating System An Operating System or OS is a software program that allows the compute
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