By: Samprit Patel

Content:

• Itroduction •What is Virtual Systems?

• How do Virtual Machine Work?

• Example of A Virtual System.

• Use of Virtual System.

•Limitations of Virual System

Introduction

In software reviews, often a program is tested in a

platform virtual machine. If you are a programmer, you may

use virtual machines to see if your product runs safely in

another operating system—for example, the different versions of

windows. Maybe you like to test and analyze malware, and don't

want to get your computer infected. This virtualization can

help.

What is VIRTUAL SYSTEM?

A virtual machine is a type of computer application used

to create a virtual environment, which is referred to

as virtualization.

Virtualization : Virtualization is defined as a logical view

between computer hardware systems and the software used to

operate them.

(a).: Non Virtual Machine (b).: Virtual MachinesFig.: Architectural Difference Non-Virtual and Virual Machine

How do Virtual System Works?

VMWare hosts each guest operating system in a separate,

secure virtual machine. Each virtual machine (VM) has its own

virtual CPU, memory, disk, etc. and all of the virtual hardware is

mapped to your computer's real hardware. Each virtual machine

also comes complete with its own BIOS that can be edited the

same way you'd edit the real BIOS on the computer that VMWare

is running on. This lets you customize your virtual machines and

control all of the usual stuff that you can control via your PC's

actual BIOS.

Example of A Virtual System.

JAVA VIRTUAL MACHINE

Use of VIRTUAL SYSTEM

Try new operating systems

Test your software

Set up an office quickly

Small Biz disaster recovery

Build kid boxes

Backup your system

Save Legacy Systems

Advantages

The most mature, proven, and comprehensive platform

High application availability

Wizard-based guides for ease of installation

Simple, streamlined management

Higher reliability and performance

Superior security

Greater savings

Affordability

Scope Of Improvement

If you are thinking this is going to eliminate the need for a better computer to run

more programs at the same time, etc.— I'm afraid you need to think again. Virtual

machines use the same memory, the same CPU, and same hard drive as your real,

host computer. This can be quite a problem, especially for computers with low

specs.

For example: On my laptop, I have 2GB of memory. Usually, that is quite enough to

satisfy me, as often I only use about 50-55% of it. However, running two operating

systems, one on a virtual machine, can increase that to 90+%. With that amount of

RAM used, memory swapping might occur, and that slo`ws things down.

So just remember: If you don't have a new, high-end computer, virtual machines can

make things a bit slower. For me, most of the time running one is something of an

ordeal, because I have to shut down mostly unnecessary processes and services.

ConclusionA virtual machine has many uses—security, trialing,

studying. But it also sucks up system resources, so it isn't an easy

thing for some.

Thank You!