Virtual Memory Management Techniques

Programmers no longer need to worry about the amount of physical memory available.

The logical (or virtual) view of how a process is stored in memory.

A technique where pages are loaded into memory only when they are demanded during program execution.

<p>A swapper manipulates entire processes, whereas a pager is concerned with individual pages of a process.</p> Signup and view all the answers

<p>A lazy swapper only swaps a page into memory if that page will be needed.</p> Signup and view all the answers

<p>Virtual memory involves the separation of logical memory as perceived by users from physical memory.</p> Signup and view all the answers

<p>Programs can be larger than physical memory because virtual memory allows the execution of processes that are not completely in memory.</p> Signup and view all the answers

<p>The basic requirement is that instructions being executed must be in physical memory.</p> Signup and view all the answers

<p>It is necessary for execution but unfortunate because it limits the size of a program to the size of physical memory.</p> Signup and view all the answers

<p>Some examples include error handling code for rare conditions, allocated memory that is never fully used, and certain program features that are rarely utilized.</p> Signup and view all the answers

<p>The benefits include not being constrained by physical memory size, allowing for extremely large virtual address spaces, and simplifying the programming task.</p> Signup and view all the answers

<p>Virtual memory allows programs to be partially stored on secondary storage, loading only necessary parts into physical memory when required.</p> Signup and view all the answers