Explain virtual memory, Computer Engineering

Assignment Help:

In a memory hierarchy system, data and programs are first stored in secondary or auxiliary memory. Program and its related data are brought in main memory for execution. What if the size of Memory needed for Program is more than the size of memory? Virtual memory is a idea used in some large computer systems which allow user to construct programs as though a large memory space were available, equal to total of secondary memory. Every address produced by CPU goes through an address mapping from so-called virtual address to a physical address in main memory. Virtual memory is employed to give programmers the illusion that they have a very large memory at their disposal although computer in fact has a relatively small main memory. A Virtual memory system offers a mechanism for translating program-generated addresses in correct main memory locations. This is done dynamically whereas programs are being executed in CPU. The translation or mapping is handled automatically by hardware through a mapping table.


Related Discussions:- Explain virtual memory

Should validation occur server- side or client - side, Should validation (d...

Should validation (did the user enter a real date) occur server-side or client-side? Why? Validation will be completed in both sides i.e., at the server side and client side. S

Objectives-classification of parallel computers , Objectives After goi...

Objectives After going through this unit, you should be able to: Describe the diffrent criteria on which classification of parallel computers are based; Examine the

What are the concerns for growth of e-commerce in india, What are the conce...

What are the concerns for growth of e-commerce in India?  Government as Facilitator for the growth of e-commerce has taken certain steps: Promotion of competitive teleco

Illustrate about packet switching, Q. Illustrate about Packet switching? ...

Q. Illustrate about Packet switching? Packet switching is used to avoid long delays in transmitting data over the network. Packet switching is a technique that limits the amoun

Important points of simulations, Important points of simulations In thi...

Important points of simulations In this simulation it is essential to consider: (1)  What and how data is gathered (2)  How simulation is done (3)  How system would wo

What are kinds of processors, Processors can broadly be seperated into the ...

Processors can broadly be seperated into the categories of: CISC, RISC, hybrid, and special purpose.

Final year project, i want to make final year project in wireless.please he...

i want to make final year project in wireless.please help me to decide the topic???????

State the optimal route of node, State the optimal route of node Consid...

State the optimal route of node Consider the node i which has path length K+1, with the directly preceding node on the path being j. The distance to node i is w(j, i) plus the

Explain the language processors, Name the language processors are? Asse...

Name the language processors are? Assembler, Compiler and Interpreter are the language processors.

Explain about merge sort circuit, Q. Explain about Merge sort circuit? ...

Q. Explain about Merge sort circuit? First split the given sequence of n numbers in two parts every part comprising of n/2 numbers. Afterwards recursively divide the sequence i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd