Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Explain the concept of virtual memory. How does it enable processes to run as if they have a large, contiguous memory space? What are the
- Explain the concept of virtual memory. How does it enable processes to run as if they have a large, contiguous memory space? What are the roles of page tables and TLBs in this context ?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Virtual memory is a memory management technique used by operating systems to provide an illusion of a larger and contiguous memory space than physically available in the systems RAM It allows processes to run as if they have access to a large contiguous memory space even though physical RAM may be limited Heres how it works Virtual Memory Address Space Each process is given its own virtual memory address space which is a range of memory addresses that it can use This address space is typically much larger than the physical RAM available in the system Page Table The operating system divides the virtual memory space into smaller fixedsize chunks called pages Similarly the physical memory RAM is also divided into pagesized chunks The page table is a data structure maintained by the operating system that maps virtual memory addresses to physical memory addresses When a process accesses a memory location in its virtual address space the page table is consulted to translate the virtual address to a physical address Page Faults Not all pages of a process are loaded into physical memory at once Instead only the pages that are currently needed are loaded When a process tries to access a page that is not currently in physical ...
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Managing Information Technology
Authors: Carol Brown, Daniel W. DeHayes, Jeffrey A. Hoffer, Wainright E. Martin, William C. Perkins
6th edition
131789546, 978-0131789548
