If you have specific hardware requirements for your project, or you are developing on one hardware platform and need to target another like Windows vs MacOS, you will need to use a virtual machine. Most other 'software only' requirements can be met by using containers. Show
It is entirely possible to use containers and virtual machines in unison although the practical use-cases may be limited. A virtual machine can be created that emulates a unique hardware configuration. An operating system can then be installed within this virtual machine's hardware. Once the virtual machine is functional and boots the operating system, a container runtime can be installed on the operating system. At this point we have a functional computational system with emulated hardware that we can install containers on. One practical use for this configuration is experimentation for system on chip deployments. Popular system on chip computational devices like the Raspberry Pi, or BeagleBone development boards can be emulated as a virtual machine, to experiment with running containers on them before testing on the actual hardware. But the majority of the time, your needs will likely be met by one of the two. The key to deciding between containers or virtual machines for your virtualization needs is understanding your resource needs and the trade-offs you’re willing to make. An intro to virtualization and the benefits of VMs
Virtual machines: virtual computers within computersA virtual machine, commonly shortened to just VM, is no different than any other physical computer like a laptop, smart phone, or server. It has a CPU, memory, disks to store your files, and can connect to the internet if needed. While the parts that make up your computer (called hardware) are physical and tangible, VMs are often thought of as virtual computers or software-defined computers within physical servers, existing only as code. How does a virtual machine work?Virtualization is the process of creating a software-based, or "virtual" version of a computer, with dedicated amounts of CPU, memory, and storage that are "borrowed" from a physical host computer—such as your personal computer— and/or a remote server—such as a server in a cloud provider's datacenter. A virtual machine is a computer file, typically called an image, that behaves like an actual computer. It can run in a window as a separate computing environment, often to run a different operating system—or even to function as the user's entire computer experience—as is common on many people's work computers. The virtual machine is partitioned from the rest of the system, meaning that the software inside a VM can't interfere with the host computer's primary operating system. What are VMs used for?Here are a few ways virtual machines are used:
What are the benefits of using VMs?While virtual machines run like individual computers with individual operating systems and applications, they have the advantage of remaining completely independent of one another and the physical host machine. A piece of software called a hypervisor, or virtual machine manager, lets you run different operating systems on different virtual machines at the same time. This makes it possible to run Linux VMs, for example, on a Windows OS, or to run an earlier version of Windows on more current Windows OS. And, because VMs are independent of each other, they're also extremely portable. You can move a VM on a hypervisor to another hypervisor on a completely different machine almost instantaneously. Because of their flexibility and portability, virtual machines provide many benefits, such as:
Related products and services for VMsWindows Virtual MachinesOn-demand, highly scalable, and protected virtualized infrastructure with Windows virtual machines in Azure Linux Virtual MachinesCreate and deploy enterprise-grade open-source and community-driven software in seconds and reduce costs Azure Dedicated HostDedicated physical server to host and run virtual machines for Windows and Linux on Azure Frequently asked questions
VM resourcesEverything you need to get started with VMsLearn how to choose the right VM for your workload and reduce costs with Microsoft Azure. Ready when you are—let's set up your free accountWhich of the following is a virtual machine technology now owned by Oracle that can run various operating systems *?Oracle VM VirtualBox enables users to run multiple operating systems on Mac, PC, Linux, or Oracle Solaris systems.
Which of the following is a virtual machine technology now owned by Oracle that can coronavirus operating system?Oracle VM VirtualBox. Oracle VM VirtualBox, the world's most popular open source, cross-platform, virtualization software, enables developers to deliver code faster by running multiple operating systems on a single device.
Which is a cloud computing service model in which hardware is virtualized in the cloud?Infrastructure as a service (IaaS) is a cloud computing model that provides access to computer hardware in a cloud-based environment. The main appeal of any cloud computing service is the virtualized hardware and software.
What is a virtual machine in cloud computing?A virtual machine (VM) is a digital version of a physical computer. Virtual machine software can run programs and operating systems, store data, connect to networks, and do other computing functions, and requires maintenance such as updates and system monitoring.
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