Virtualization allows multiple virtual machines to run on a single physical machine. It started with mainframe virtualization in the 1960s and expanded to x86 servers with VMware in the late 1990s. Virtualization provides hardware isolation, compatibility, and independence. Virtual machines can be moved and managed as a flexible virtual infrastructure. Cloud computing takes this a step further by providing on-demand, self-service access to virtual resources over the internet.

1. Virtualization
An Overview

2. Timeline
• Mid 1960s – Virtualization of Mainframes by
IBM
• 1980s & 1990s –x86 computers dominated.
• This resulted in widespread domination of one
application server architecture.
• However, this became increasingly wasteful as
power continued to grow by leaps and bounds.
• 1998- VMware Begins.

3. Timeline…
• First Patent “System & Method for Virtualization
computer Systems.”
• 1999 – VMware Workstation Launched.
• Now, it was possible to run multiple machines
on single x86 workstation.
• Today – Virtualization has come far from just
being a tool.

4. How does it work??
• This is an isolated software container.
• It works exactly like a physical workstation.
VMware OR Operating System
Machine

5. Advantages!!!!
Encapsulation
Isolation
Compatibility
Hardware
Independence

6. Advantages…
• Each Virtual machine remains completely
isolated from each other ; one crash does not
affect other virtual machine.
• Completely compatible with all standard x86
platform.
• No Modification Required.
• Free to run whatever OS & application you’d like
inside that VM without concern for its neighbor
VMs or physical host. You could move the entire
VM onto another host with all drivers intact.

7. Virtual Infrastructure
• Encapsulated, Hardware independent VM are
building blocks that form a part of a much larger
solution offered by VMware .
• THIS IS VIRTUAL INFRASTRUCTURE!!!!
• Provides Flexibility, Savings & Greater
Satisfaction to internal customers, IT
Organizations.

10. WHAT IS CLOUD????
• It is not just a virtualized infrastructure or a
network.
• It is a virtualized environment that has been
developed to SELF-SERVICE.
• This means NO ENDLESS MEETINGS, NO
WAIT TIME, SELF-SERVICE, CONTROL,
MANAGEABILITY.
• YOU GO FOR IT AND YOU GET IT.

14. Types Of Cloud
• Private
• Public
• Hybrid
• Private cloud is hosted by an organization
producing all hardware and software for cloud.
• Public cloud have a 3rd party provider running
its data center but organization has complete
control over the machine.
• Hybrid is a combination of the two.(Most
Effective)

15. Cloud Services
• IaaS – Infrastructure as a Service
Resource pool through a Catalog, No
human error or security loophole.
• PaaS – Platform as a Service
• SaaS – Software as a Service, like Google Docs,
Amazon.

16. Cloud Computing
An approach to computing that leverages the
efficient pooling of on-demand, self managed
virtual infrastructure, consumed as a service.
• Controlled by IT.
• Yet entirely ON-Demand.