Cloud computing is a model that delivers computing resources, software, and data over the internet, originating from ideas presented as early as 1960. It includes various service models such as IaaS, PaaS, and SaaS, enabling businesses to access infrastructure without heavy investment. While cloud computing offers advantages like cost savings and improved performance, it also presents challenges such as a reliance on internet connectivity and security concerns.

2. Cloud computing is location-independent computing,
whereby shared servers provide resources, software,
and data to computers and other devices on demand.

4.  The concept was coined by John McCarthy in 1960.
 The term cloud came into commercial use in the early 1990s generally refers to
large ATM network.
 By the 21st century the real concept of “cloud computing” has appeared most
focus was on SaaS.
 In 1999 , Saleaforce.com was established by Marc, Parker and his fellows.
 IBM extended the concept in 2001.

7. Private
Cloud
Public
Cloud
Hybrid
Cloud
Community
Cloud

10. Cloud computing providers offer their services according to
several fundamental models
Infrastructure as a service (IaaS)
Platform as a service (PaaS)
Software as a service (SaaS)

11. This is the base layer of the cloud stack.
It serves as a foundation for the other two layers, for their execution. The
keyword behind this stack is Virtualization.
Let us try to understand this using Amazon EC2. In Amazon EC2 (Elastic
Compute Cloud) your application will be executed on a virtual computer
(instance). You have the choice of virtual computer, where you can select
a configuration of CPU, memory & storage that is optimal for your
application. The whole cloud infrastructure viz. servers, routers, hardware
based load-balancing, firewalls, storage & other network equipments are
provided by the IAAS provider. The customer buy these resources as a
service on a need basis.
Infrastructure as a Service (IaaS)

12. Now you don’t need to invest millions of $$$ to get that
development foundation ready for your developers. The PaaS
provider will deliver the platform on the web, and in most of the
cases you can consume the platform using your browser, i.e.
no need to download any software.
PaaS Layers
PaaS Examples
Google app Engine and Window Azure are examples of
Cloud OS. are cloud middleware.
Platform as a Service (PaaS)

13. • Next generation SaaS promises everything as a
service over the internet.
• Cloud computing started with a similar premise.
• A computing paradigm where there exists a
flexible set of computing resources across the
internet.

14. Cloud Service Providers
 Microsoft
 Google
 Amazon
 IBM
 Sales force
 ZOHO

15. Advantages of Cloud Computing
 Lower computer costs.
 Device Indipendence
 Improved performance.
Unlimited storage capacity.
 Increased data reliability.
 Universal document access
 Easier group collaboration

16. Disadvantages of Cloud Computing
 Requires a constant Internet connection.
Features might be limited.

17. Blue Cloud:
15 Nov 2007, IBM
wants some of that
Web 2.0 mojo. That
is what is behind its
announcement
today of Blue Cloud,
a set of “cloud
computing”
offerings that will be
available to its
corporate
customers in the
first quarter of 2008.
Windows Azure:
The Windows
Azure platform is
a flexible cloud
computing
pleatform that
lets you focus on
solving business
problems and
addressing
customer needs.
EC2:
Amazon Elastic
Compute Cloud
EC2 allows users
to rent virtual
computers on
which to run their
own computer
applications.
App Engine:
Offers users the
ability to build
and host web
applications on
Google's
infrastructure.

18. Data:-2013

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600
900
1200
1500
2012 2013 2014 2015 2016 2017
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2012
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2014
2015
2016
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Source: Institute of Engineering and Technology, IHS © Graphic New

20.  It Provides Tremendous benefits to Companies.
 You Pay only for Services that you use.
 Cloud computing is now evolving like never
before.
 Cloud Computing is the fastest growing part of
IT but still has security issues and somewhat it
is immature.
 But definitely, over a period of time, Cloud
Computing will become the most promising
technology in next few years.

22.  Google
 Wikipedia
 Amazon.com
 Salesforce.com