A hypervisor is computer software, application, a firmware or a hardware that creates and runs virtual machines. They are also called virtual machine monitor (VMM). A computer on which a hypervisor runs one or more virtual machines is called a host machine, while all the individual virtual machine is called a guest machine.
<span>A real-time operating system is a very fast, relatively small os. it is designed to respond to hardware and program requests almost instantly.</span>