In computing, virtualization refers to the act of creating a virtual (rather than actual) version of computing resources such as hardware, Network, OS, software, platform, applications etc.

1. Cloud Computing: 1
Cloud Computing and Virtualization
Prof Neeraj Bhargava
Vaibhav Khanna
Department of Computer Science
School of Engineering and Systems Sciences
Maharshi Dayanand Saraswati University Ajmer

2. The Digital Economy
• Digital economy will fundamentally change life as we know it for all
businesses.
• The digital economy is here and is growing at bewildering speeds.
• 40 percent of all IT projects involve creating new digital services and
revenue streams that monetize data.
• In this new application-driven world, digitally driven startup
companies like Airbnb and Uber have become global powerhouses
seemingly overnight.
• Well-entrenched companies are also rethinking their business
models and investing heavily in software, data, and analytics.

3. Need of Virtualization / Problem – Solution
• In computing, virtualization refers to the act of creating a virtual
(rather than actual) version of computing resources such as hardware,
Network, OS, software, platform, applications etc.
• The virtualization began when IT organizations were wrestling with
the limitations of x86 servers
• These Servers were designed to run just one operating system and
one application at a time.
• As a result of this limitation, even small data centers had to deploy
many servers, each operating at 5 percent to 15 percent of capacity.
• By any standards, utilization rates along those lines are not just
inefficient; they’re downright wasteful.
• Virtualization fixes this problem.

4. Cloud And Virtualization

5. Cloud And Virtualization

7. Hardware virtualization:
• Hardware virtualization or platform virtualization
refers to the creation of a virtual machine that acts like
a real computer with an operating system.
• Software executed on these virtual machines is
separated from the underlying hardware resources.
• In hardware virtualization, the host machine is the
actual machine on which the virtualization takes place,
and the guest machine is the virtual machine.
• The words host and guest are used to distinguish the
software that runs on the physical machine from the
software that runs on the virtual machine.

9. Resource Pooling and Virtualization

10. Hypervisor or Virtual Machine Manager
• The software or firmware that creates a virtual
machine on the host hardware is called a
hypervisor or Virtual Machine Manager.
• Virtualization creates a software representation
of the underlying hardware and enables you to
run multiple virtual machines on top of a single
host.
• Each virtual machine has its own operating
system and application running inside.
• By doing so, virtualization enables much higher
levels of utilization and efficiency.

11. Assignment
• Explain the concept of Virtualisation,
Hardware Virtualisation and Hypervisor
• Explain the role of Virtualization in cloud
computing