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

Explain the principles of design, In structure chart whole application is d...

In structure chart whole application is divided into modules (set of program instructions) and modules are designed according to some principles of design. These are: Modularit

Contain your variable names and definitions, Give your analysis for the fol...

Give your analysis for the following problem statement: You require to write a program that calculates the area and perimeter of a rectangle whose dimensions (Length &width) are gi

Environments -artificial intelligence, Environments: We have seen that...

Environments: We have seen that an agents intelligent should take into account certain information when it choose a rational action, including information from its sensors, in

What about division and multiply operations, Q. What about division and mul...

Q. What about division and multiply operations? In most of the older computers divisions and multiply were implemented using subtract/add and shift micro-operations. If a digit

Vector-memory instructions-vector processing, Vector-Memory Instructions : ...

Vector-Memory Instructions : When vector operations with memory M are executed then these are vector-memory instructions. These instructions are denoted with the many function mapp

Define register file, Define register file. All general purpose registe...

Define register file. All general purpose registers are combined into a one block called the register file.

Elucidate basic time division time switching method, With the help of block...

With the help of block diagram Elucidate basic time division time switching method. Basic Time Division Switching: Functional blocks of a memory based time division switching

State the hardware faults and softwate faults, State the hardware faults an...

State the hardware faults and softwate faults - protection against hardware faults could be to keep backups or use GFS; use of UPS (in case of power loss) and parallel system a

When can we see layer groups in gimp, Sometimes it is nice to place layers ...

Sometimes it is nice to place layers in groups. It makes them simple to organize when you have lots of them. It also means you can simply apply the similar effect to lots of layers

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