Cloud computing is a model for delivering information technology services in which resources are retrieved from the internet through web-based tools and applications, rather than a direct connection to a server. Data and software packages are stored in servers. For more information visit: http://www.welcomenetworks.com/private-cloud-services.htm

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(INTERNAL OR EXTERNAL)
(INTERNAL BY MEMBER OR EXTERNAL)

4. Public clouds are made available to the general
public by a service provider who hosts the cloud
infrastructure. Generally, public cloud providers
like Microsoft and Google own and operate the
infrastructure and offer access over the Internet.
With this model, customers have no visibility or
control over where the infrastructure is lo
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5. Private cloud is cloud infrastructure dedicated to
a particular organization. Private clouds allow
businesses to host applications in the cloud,
while addressing concerns regarding data
security and control, which is often lacking in a
public cloud environment. It is not shared with
other organizations, whether managed internally
or by a third-party, and it can be hosted
internally or externally.
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(INTERNAL OR EXTERNAL)

6. A community cloud is a multi-tenant cloud
service model that is shared among several
organizations and that is governed, managed and
secured commonly by all the participating
organizations or a third party managed service
provider.
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(INTERNAL BY MEMBER OR EXTERNAL)

7. Hybrid Clouds are a composition of two or more
clouds (private, community or public) that
remain unique entities but are bound together
offering the advantages of multiple
deployment models. In a hybrid cloud, you can
leverage third party cloud providers in
either a full or partial manner; increasing the
flexibility of computing.
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9. This is the Top most layer of the cloud computing
stack and directly consumed by end user.
SaaS allows user to run existing online
applications.
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10. 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.
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11. Infrastructure as a Service (IaaS) is a service
model that delivers computer
infrastructure on an outsourced basis to support
enterprise operations.
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