ESXi

ESXi is a type of software called a hypervisor that runs on a physical computer, known as a server, and allows multiple virtual computers (virtual machines) to operate independently on the same hardware. It manages resources like CPU, memory, and storage, enabling efficient use of hardware and simplified management. This setup is common in data centers and enterprise IT because it helps optimize infrastructure, improve scalability, and reduce costs. Essentially, ESXi lets one physical machine act like many, each running different operating systems and applications simultaneously, enhancing flexibility and resource utilization.