Virtual System
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Transcript of Virtual System
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!