Hyper-V is a virtualization technology developed by Microsoft that allows multiple operating systems to run on a single physical machine. It enables organizations to consolidate multiple physical servers into a single machine, reducing hardware costs and simplifying management.

Hyper-V allows administrators to create virtual machines (VMs) that can run different operating systems and applications on the same physical server. Each VM has its own virtual hardware, including CPU, memory, storage, and network interfaces. This allows administrators to allocate resources to VMs based on their needs, optimizing resource utilization and increasing efficiency.

Hyper-V also provides a range of features that make it a powerful solution for virtualization. It supports live migration, which allows VMs to be moved between physical hosts without downtime. It also supports dynamic memory allocation, which enables VMs to use memory more efficiently.

Hyper-V is included with the Windows Server operating system and is also available as a standalone product, Hyper-V Server. It is widely used in enterprise environments to provide virtualization capabilities for server workloads, including web servers, database servers, and application servers.