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What is tha advantage for an operating system of using a virtual machine?
Wiki User
∙ 11y ago
An advantage of using a virtual machine is you can run multiple operating systems under the umbrella of one operating system. Without a virtual machine you have to reboot every time you want to want to change operating systems but with a VM you can simply switch between them.
Wiki User
∙ 11y ago
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What the advantage for an operating system designer of using a virtual machine?
A virtual machine will provide generic hardware that can be found in many other computers. Having a virtual machine eliminates the need to have either a second system, or to reboot to test their operating system.
Can a virus jump from a virtual machine to a host operating system if file sharing is disabled?
No
What is a Guest Operating System?
A Guest operating system is one that runs on top of another, similar to a program. Guest operating systems are usually run in a "virtual machine", which does not interact directly with the real hardware of the computer.
When using virtual machine software and VMs what is the host operating system?
That's the "base" operating system. Let's say you have Windows 7, and you need Windows XP for compatibility (for instance, lots of older games no longer work with Windows 7). So you install a virtual machine using a special program such as as VMWare, and you run Windows XP in a window within Windows 7. (It can be full-screen as well.) Or perhaps you want to try out Linux. In this example, the base machine - the real, physical machine - has Windows 7; that's the host operating system, while the virtual machine has Windows XP (or Linux).Note: It is also possible, for example, for the host operating system to be Windows 7, and the virtual machine also Windows 7 - this can help you isolate different installations, and - for example - if you no longer need it, erase the entire virtual machine, which is faster, and often much cleaner, than uninstalling.
What the advantage for an operating system designer of using a virtual machine what is the main advantage for a user?
If I was designing a program for a computer that I do not have only a virtual machine would allow me to do that. That, as a programer, means I can not only design but test software for a mainframe computer or a cloud network without having the expense of owning the real machine. As a user it means that all possible answers, problems, and fail over situations have already been found and fixed before the software goes commercial / live.
What the advantage for an operating system designer of using a virtual machine?
A virtual machine will provide generic hardware that can be found in many other computers. Having a virtual machine eliminates the need to have either a second system, or to reboot to test their operating system.
What does the virtual machine software uses to interface between the host operating system and the guest operating system?
Virtual Layer
Can you have two operating systems on one computer?
Yes, but only one can be in control of the system. When a choice of operating systems exist, you typically choose the controlling operating system via a boot menu at startup. To switch to another operating system, you must restart the system. It is possible to run two or more operating systems at the same time via virtual machines. A virtual machine is a software program that emulates a real computer. However, operating systems within a virtual machine have no direct control over the physical machine which is always under the direct control of the one operating system chosen at startup. Virtual machine operating system calls are routed to the virtual machine software which must translate the call to invoke the appropriate system function of controlling operating system. As a result, virtual machines perform extremely poorly compared to the physical machines within which they operate.
Why do modern machines consist of multiple levels of virtual machines?
Modern machines do not consist of multiple levels of virtual machines; that is a function of the host operating system's virtual machine manager and its guest operating systems, all of which are implemented through software. The operating system's virtual machine manager exposes one or more virtual machines upon which you can host one or more guest operating systems and their applications. In order to execute compiled Java applications upon one of these guest operating systems you will also need to install the Java virtual machine for that specific operating system. Thus you end up with a Java program executing within a Java virtual machine executing within a virtual machine executing within a virtual machine manager executing upon the physical hardware. The physical hardware itself may be optimised to handle virtual machine managers more efficiently, but the virtual machine manager is a software program; it is not part of the physical machine architecture
Can a virus jump from a virtual machine to a host operating system if file sharing is disabled?
No
Why cant you use all of your systems memory to run a virtual machine?
You can't use all of your system memory to run a virtual machine because then there wouldn't be enough memory for the Operating System that's running the virtual machine to function. For instance, if you have 4 GB of system memory total, and your operating system needs at least a quarter of that (1 GB) to function, then your virtual machine maximum memory would be 3 GB.
What is the process of deploying and maintaining multiple instances of an operating system on a single computer?
A Virtual Machine.
The virtual machine concept calls for multiprogramming or time sharing at the what level?
Operating System level.
What is the virtual machine system?
Java virtual machine
Advice on Windows Virtual Machine?
There is an excellent new invention out called a Windows Virtual Machine. A virtual machine is a program that allows you to run an entire operating system inside of an existing one. This is an excellent option for many users. In this article, we will discuss some of the things that you can do to make your Windows Virtual Machine experience go smoothly and easily. In addition, we will highlight some of the things that many users use this technology for. First you must decide which operating system you are going to install. Many users decide to install Linux due to its incredible stability. In addition, recent forms of Linux have made it easy to use just like Windows. However, many users decide to simply use a different version of windows inside of their virtual machine. Installing a different operating system inside of Windows is extremely easy. All you must do is select the option from your Start Menu. After doing so, the computer will guide you through the rest of the process. After installing your alternative operating system, you will have the option to use it as a safeguard system. What this means is that any potentially harmful tasks that you are concerned about doing on your main operating system can be performed on your secondary operating system. This method ensures that if something does go wrong, such as a bad registry install or a virus that gets accidentally downloaded; you can simply reinstall the software without having to touch your precious files. Some people do not like to use a virtual machine for everything. For instance, most virtual machine operating systems do not take full advantage of the system’s 3D graphic processor. Therefore, many gamers do not opt to use a virtual machine over a traditional operating system. In addition, running a virtual machine tends to take a toll on laptop batteries. Therefore, if you plan to use a virtual machine, always ensure that your laptop is plugged in. If you do not, you may find that your laptop battery can only last an hour or so. Running Windows Virtual Machine can be a greatly rewarding experience as long as all of this important advice is followed.
How do you use USB in Fedora in a virtual machine?
The only virtual machine that currently support USB passthrough to allow a guest operating system to use a USB device connected to the host is VirtualBox.
What is the need of java virtual machine when operating system is already present?
1.Java virtual machine is required to interpret .class files. 2.JVM makes the java as platform independent.
