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

State about the directed-test methodology, Directed-Test Methodology Bu...

Directed-Test Methodology Building a directed verification environment with a comprehensive set of directed tests is very time-consuming and difficult. As directed tests only c

Researching strategy - artificial intelligence, Researching strategy - arti...

Researching strategy - artificial intelligence: If our search and researching strategy and swot of it is surety to find all types of hints such the solutions eventually, then

Stepwise refinement of the program, What do you understand by stepwise refi...

What do you understand by stepwise refinement of the program? The method of "Stepwise refinement" means to take an object and move it from a general perspective to a exact leve

Illustrate layout of magnetic disk, Q. Illustrate Layout of Magnetic Disk? ...

Q. Illustrate Layout of Magnetic Disk? Head is a relatively small device capable of reading from or writing to a part of platter rotating beneath it. This gives rise to organiz

What are the steps involved in designing, Before getting into the design th...

Before getting into the design the designer should go by the SRS prepared by the System Analyst. The main tasks of design are Architectural Design & Detailed Design. In Arch

What does the future in gimp, Version 2.8 may bring a combined Transform to...

Version 2.8 may bring a combined Transform tool (Scale, Rotate,Flip and Perspective), more use of Cairo for attractive ant aliased graphics and more usability improvements. We will

How can i model a bi-directional net, How can I model a bi-directional net ...

How can I model a bi-directional net with assignments influencing both source and destination? Assign statement constitutes a continuous assignment. Changes on the RHS of stat

How do we draw in a different color in gimp, At the bottom of the toolbar t...

At the bottom of the toolbar there is a box with two lesser boxes and an arrow. The uppermost box displays the present foreground color; the lowermost box shows the present backgro

Concept of multithreading, Concept of Multithreading: These troubles incre...

Concept of Multithreading: These troubles increase in the design of large-scale multiprocessors such as MPP as discussed above. Thus, a solution for optimizing this latency should

C LANGUAGE, 4) A positive integer is entered through the keyboard;write a ...

4) A positive integer is entered through the keyboard;write a function to find the binary equivalent of this number using recursion.

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