Virtualisation-advantages

What is Virtualisation? one computer doing job of multiple computers by sharing resources of a single computer across multiple environments. In addition to energy savings and lower capital expenses due to more efficient use of your hardware resources, you get high availability of resources, better desktop management, increased security, and improved disaster recovery processes when you build a virtual infrastructure. Now, we here virtualization every time. It is an effort by software and hardware which creates virtual machines that is an abstraction of software and hardware which allows a single machine to act as many machines.
Virtualization happens by
1. without Virtual Machine- that is single OS for all hardware resources
2. with Virtual Machines, multiple OS , each running on its own machine
3. Virtualization enables multiple operating systems to run on the same physical platform.
Virtualisation has advantages of
1. Reduce IT cost
2. Increase Agility
3. Improve Quality