The document provides an overview of cloud computing. It defines cloud computing and discusses its history from the 1960s concept of computing as a utility to modern cloud platforms. The document outlines different cloud service models including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It discusses major cloud providers like Amazon, Google, Microsoft and IBM and different deployment models. The document notes both benefits of cloud computing like reduced costs, flexibility and drawbacks around security, internet dependence and transition challenges.
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In June 2009, a study conducted by VersionOne
found that41% of senior IT professionals
actually don't know what cloud computing is and
two-thirds of senior finance professionals are
confused by this concept
3. Outline
What is Cloud Computing ?
History
Why Cloud Computing?
VIRTUALIZATION
Services Provided by Cloud Computing
Service Providers of Cloud Computing
Cloud Architecture
Pros and Cons of Cloud Computing
4. Cloud computing is a general term for
anything that involves delivering hosted
services over the Internet
- whatis.com
It is a paradigm in which information is
permanently stored in servers on the
Internet and cached temporarily on clients
that include desktops, net
books, entertainment centres etc
- IEEE
5. Cloud….!
▪ “Cloud” is simply a
metaphor for the internet
▪ Users do not have or
need knowledge, control,
ownership in the
computer infrastructure
▪ Users simply rent or
access the software,
paying only for what they
use
6. History
In 1960’s, John McCarthy, "computation
may someday be organized as a public
utility”
Idea that revolutionized Cloud Computing:
Utility computing by Amazon
Grid computing
“In some ways, the cloud is a natural next
step from the grid-utility model,” said Frank
Gens, an analyst at the research firm IDC
20. Software as a Service
Defined as service-on-demand, where a
provider will license software tailored
Infrastructure providers can allow customers’ to
run applications off their infrastructure, but
transparent to the end user
Greater computing while saving
Cost, Space, Power Consumption, Facility
21. Platform as a Service
Provides all the facilities necessary to support
the complete process of building and delivering
web applications and services, all available
over the internet
Infrastructure providers can transparently alter
the platforms for their customers’ unique needs
Google App Engine, SalesForce platform
22. Infrastructure as a Service
Defined as delivery of computer infrastructure
as a service
Infrastructure providers can dynamically
allocate resources for service providers
Allows cost savings for the service
providers, since they do not need to operate
their own datacenter
Amazon’s EC2, GoGrid
24. “GoogleBurst “
“ Elastic 101”
Cloud Compute Cloud “Amazon EC2”
“Azure”
IBM also made upcomputing capacity in a
Network resizable
Provides offers “private” cloud ofservices
of millions computing
cheap
Internet-scale cloud computing and
servers, hosted in Microsoft data staggering
platform that would store centers
services using IBM blue services software.
cloud
Instead ofthehelpincluding numerousand the
amounts of data, required to obtain copies
Designed putting information out on
Reduces to timedevelopers quickly and
of the world wide web manage, and distribute
internetcreate, deploy, companies data center
easily it makes space from weeks to
boot new server the
Makes search faster, helping ferret out
into its own cloud. applications on blocked off
web services and This cloud is the
minutes
internet.to billions
from the developers of queries in a capacityof
answers internet using firewalls. fraction
Allows to pay only for
athat they actually use
second
25. Public
Private
Deployment models Hybrid
Community
26. Strong Points
Reduced Hardware equipment for end users
Instant Software Updates
Accessibility
Less Expensive
Better Collaboration
Pay for what you use
Flexible
Need not invest on multiple licensing
27. Weak points
Security Issues
Internet connection
Location of Servers
Time for Transition
Speed