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developer-roadmap/roadmaps/cloud-computing/content/hypervisors@2WrbFJYVhDNYBVw9VBdzk.md

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# Hypervisors
A hypervisor is the software layer that makes virtualization possible. It sits between the physical hardware and the virtual machines running on top of it, allocating CPU, memory, and I/O resources to each VM while keeping them isolated from one another. Type 1 hypervisors (KVM, VMware ESXi, Hyper-V) run directly on bare metal and are used by all major cloud providers. Type 2 hypervisors (VirtualBox, VMware Workstation) run on top of a host operating system and are used primarily for local development.
Visit the following resources to learn more:
- [@article@What is a hypervisor?](https://aws.amazon.com/what-is/hypervisor/)
- [@video@What is a Hypervisor?](https://www.youtube.com/watch?v=LMAEbB2a50M)