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What is virtual memory? (the basic concept) requirement- - answer the question - provide full explanation including key details and please use this as a reference

What is virtual memory? (the basic concept) requirement- - answer the question - provide full explanation including key details and please use this as a reference

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question- What is virtual memory? (the basic concept) requirement- - answer the question - provide full explanation including key details and please use this as a reference
Virtual Memory o Logical memory is separated from physical memory o processes are not required to be completely in main memory leave out less often used code • arrays, lists & tables are rarely as big as allocated + • not all code is executed at once o Advantages: • processes can be larger than main memory programmers are not limited by main memory size constraints ● • Each process would take up less memory, allowing more processes into main memory to keep CPU busy pages can be shared
Transcribed Image Text:Virtual Memory o Logical memory is separated from physical memory o processes are not required to be completely in main memory leave out less often used code • arrays, lists & tables are rarely as big as allocated + • not all code is executed at once o Advantages: • processes can be larger than main memory programmers are not limited by main memory size constraints ● • Each process would take up less memory, allowing more processes into main memory to keep CPU busy pages can be shared
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