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What are the hardware and software requirements for virtual memory?
The hardware required for virtual memory is a secondary memory and page table. The page table should have the ability to mark an entry as valid or invalid. The secondary memory is the one that holds the pages that are not present in the memory. It is generally a high speed disk and the section used is called swap space.
The main software requirement can be restart any instruction after a page fault occurs. If a page fault take place during instruction fetch the instruction is to be restarted moreover if it occurs during fetch of an operand then the instruction is to be fetched and decoded and then fetches the operand.
How free-space is managed using bit vector implementation? The free-space list is implemented as a bit map or bit vector. Each block is shown by 1 bit. If the block is free, th
Determine how Action implementing instruction’s meaning are a actually carried out Action implementing meaning of instruction are a actually carried out Instruction executio
Question 1 What is a message passing system? Discuss the desirable features of a message passing system Question 2 Discuss the implementation of RPC Mechanism in detail Q
The Most comman difference are given below System calls are heavy. While a procedure call can generally be performed in a few system instructions, a system call needs the c
System Service Program system service program Supports and provides the services for other program. System service program perform Varity of tasks. They are further divided in
Question 1 Explain the following with respect to Resource Management in Distributed Systems- Task assignment Approach Load - Balancing Approach Load - Sharing Approach
Explain Structure The Grammar for programming language is a formal description of Structure
Q. Why is it significant to balance file system I/O among the disks as well as controllers on a system in a multitasking environment? Answer: A system can perform mere
In a multiprogramming and time sharing environment several users share the system simultaneously .what are two such problems?
Performance of demand paging Demand paging can have an important effect on the performance of a computer system. As long as there are no page faults, the effective access time
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