This document discusses cloud computing, including its definition as delivering hosted services over the internet, a brief history of cloud computing from the 1960s to 2011, and the main types of cloud computing models (public, private, and hybrid clouds). It also outlines the key components, services, providers, and benefits and disadvantages of cloud computing.

1. CLOUD COMPUTING
Making Life Simple…

2. CLOUD COMPUTING
 By : Faisal Hussain
 University of Engineering and Technology, Taxila,
Pakistan

3. What Is Cloud Computing?
 It Is the delivering and usage of hosted services over
the internet.
 Hosted services can be application, software,
hardware, webmail, security, monitoring etc.
 Users “renting” or “borrowing” online software
instead of actually purchasing and installing it on
their own computers.

5. Further About Cloud Computing….
 History Of cloud Computing.
 Types Of cloud computing.
 Services Provided by cloud computing.
 Components Of cloud Computing.
 Cloud computing providers.
 Benefits VS Disadvantages.
 Outcome…

6. Brief History………….
 1960: John McCarthy opined that “computation may
someday be organised as a public utility”.
 1990: Internet age started.
 1995: The online auction website “eBay” was founded.
 2006: Amazon launched Amazon Web Service (AWS).
 2008: Eucalyptus became the first open-source.
 2011: The year that truely made a mark for Cloud Computing.

7. Types Of Cloud Computing.
 PUBLIC CLOUD.
 PRIVATE CLOUD.
 HYBRID CLOUD.

8. Public Cloud
 Applications,
storage, and
other resources
are made
available to the
general public by
a service
provider.

9. Private Cloud
 Infrastructure
operated solely
for a single
organization,
whether
managed
internally or
externally.

10. Hybrid Cloud
 Cloud computing
environment in
which an
organization
provides and
manages some
resources in-house
and has
others provided
externally.

11. Services Provided By Cloud
Computing
 Infrastructure As A Service(IaaS).
 Platform As A Service(PaaS).
 Software As A Service(SaaS).

12. Infrastructure As A Service.
 IaaS providers offer computers, as physical or more
often as virtual machines, and other resources.

13. Platform As A Service
 In the PaaS model, cloud providers deliver
a computing platform typically including operating
system, programming language execution
environment, database, and web server.

14. Software As A Service
 In the SaaS model, cloud providers install and
operate application software in the cloud and cloud
users access the software from cloud clients.

16. Components Of cloud Computing
 Cloud computing involves the multiple cloud components
that communicate with each other.
 The front end is the main screen that is visible to the
customers and users through which they interact with the
system.
 The back end involves all the components and the
complete architecture.
 The back end device involves, cloud server, assistant
computers, data storage media and many connectors.

17. Service Providers
 IaaS Providers: Amazon EC2, Windows Azure Virtual
Machine, Google Compute Engine, HP Cloud etc.
 PaaS Providers: Mendix, Google App Engine,
OrangeScape, Heroku etc.
 SaaS Providers: Microsoft, Google App, Onlive etc.

18. Benefits VS Disadvantages
BENEFITS
 Agility.
 Reduced costs.
 Reliable.
 Can Access the
application from
anywhere and all the
time.
DISADVANTAGES
 Requires a constant
internet connection.
 Does not work well with
low speed internet.

19. Outcome…
 Better results in return of minimum disadvantages is
not a bad deal.

20. References
 http://wikipedia.org
 http://netforbeginners.about.com