In virtualisation, what is the role of a hypervisor?

Hypervisor enables a single physical server/host to run multiple independent virtual computers (also known as Virtual Machines), each wtih its own operating system and applications. The hypervisor manages and allocates the host's physical computing resources - such as CPU, meory and storage to each virtual machine, ensuring isolation and efficient use of hardware.

Tell me a simple example of client-server

Desktops, laptops, and mobile devices are the simple examples of client-server.

In virtualisation, what is the role of a hypervisor?

Tell me a simple example of client-server