State in brief about virtual memory, Computer Engineering

Assignment Help:

What is Virtual memory

The term virtual memory signifies something that appears to be present though actually it is not. Virtual memory technique enables users to use more memory for a program than real memory of a computer. A programmer can write a program that requires more memory space than capacity of the main memory. Such a program is executed by virtual memory technique. Program is stored in the secondary memory. Memory management unit (MMU) transfers currently required part of the program from the secondary memory to main memory for execution. This part of program is executed by the processor. After execution this part of program is sent back to the secondary memory together with immediate results. Afterwards CPU takes another part of the program for execution. So the main memory always keeps only currently needed part of the program. This type of 'to and from' movement instructions and data between main memory and secondary memory is termed as swapping. So a program requiring more memory space than capacity of the main memory can executed employing a swapping technique. This concept is called virtual memory technique.

 


Related Discussions:- State in brief about virtual memory

Determine through which symbolic names can be associated, Determine Symboli...

Determine Symbolic names can be associated with Symbolic names can be associated with the data or instruction

Explain various classes of datatypes of c, Explain various classes of datat...

Explain various classes of datatypes of C   Following are the main classes of data types in C language: 1.  Primary data types: Also called as fundamental/basic data types

Application of connect-4 game, The game Connect-4 is played on a board that...

The game Connect-4 is played on a board that has seven columns. There are six spaces on each column. The board is initially empty. Two players take turns dropping one piece (black

Which of the memory is volatile memory, Which of the memory is volatile mem...

Which of the memory is volatile memory ? Ans. A volatile memory is RAM. Term Volatile memory implies the contents of the RAM get erased as soon as the power goes off.

Write program to simulate conversation with an old and deaf, You are going ...

You are going to write a program to simulate a conversation with an old, deaf relative. You can type your statements, and whatever you say, the relative will reply randomly with on

How can server communicate with more than one client, Server can interact w...

Server can interact with more than one client with using threading concepts there are java threads which are allocated to each client when he logs in to server, the thread handles

Example of perceptrons, Example of perceptrons: Here as an example fun...

Example of perceptrons: Here as an example function in which the AND boolean function outputs a 1 only but if both inputs are 1 and where the OR function only outputs a 1 then

Carry look-ahead adder and booth''s algorithm, Describe carry look-ahead ad...

Describe carry look-ahead adder? Ans: The input carry required by a stage is directly computed from carry signals obtained from all of the preceding stages i-1,i-2,.....0, rat

How to changing the directory in dos, Q. How to Changing the Directory in D...

Q. How to Changing the Directory in DOS? You can change the directory. After changing the directory, the new directory becomes the default directory. For example, you change th

Define bandwidth, Define Bandwidth? When transferring blocks of data, i...

Define Bandwidth? When transferring blocks of data, it is of interest to know how much time is required to transfer an entire block, as blocks can be variable in size it is use

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