CLOUD COMPUTING IT is a service provider which provides
information. IT allows the employees to work remotely IT is a on
demand network access. IT helps to share a large pool of
information's. For e.g.(networks, services,applications, software.
IT delivers information's without a direct connection to the
server. IT define as cloud because the services inside this
computing is vast just like cloud.
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WHY DO WE REQUIRE CLOUD COMPUTING. IT gives large services as
compare to other services. When the demand of the same subject is
more there is no affect on this service while the servers are
crash. IT saves money as compare to other computing service's.
Widespread availability irrespective of geographical precincts.
Allow for easy connectivity to servers and information
sharing.
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System crash due to the large demand of markets SERVER Demands
Disadvantage of ordinary services
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Process of cloud computing is given in several steps. They
are:- The request customer directly goes to the central server
either it is programme or videogames. Central server administers
the system, monitoring traffic and client demands to ensure
everything runs smoothly. Central server follows some rules which
is called protocols and through this it helps to find the demand of
customers. When the server finds the demand of customer
applications then the request is resolve as fast as can. The main
advantage is that in large demands services better the n ordinary
services.
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Applications and services. request Request goes to the server
Reply Request completed
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Logical diagram of cloud computing.
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There are many types of cloud computing but generally there are
three types of cloud computing which are used are in market. They
are:- Infrastructure as a service(Iaas). Platform as a
service.(PaaS). Software as a service(SaaS). And rest are Network
as a service(NaaS). Storage as a service(STaaS). Security as a
service(SECaaS). Data as a service(DaaS).
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SaaS allows a business potential to reduce it operational costs
by outsourcing hard ware and software maintenance support to the
cloud provider. IN business model SaaS, users are provided access
to application software and databases. SaaS is sometimes referred
to as on-demand software and is usually priced on a pay-per-use
basis. SaaS providers generally price applications using a
subscription fee.
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Platform as a service (PaaS) is a category of cloud computing
services that provide a computing platform and a solution stack as
a service. In this model, the consumer creates the software using
tools and/or libraries from the provider PaaS facilitates the
deployment of applications without the cost of buying and managing
the hardware and software and provisioning hosting capabilities.
PaaS offerings may also include facilities for application design,
application development, testing and deployment.
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IaaS providers offer computers, as physical or more often as
virtual machines, and other resources. IaaS clouds often offer
additional resources such as images in a virtual machine image
library, raw (block) and file-based storage, firewalls, load
balancers, IP addresses. IaaS cloud providers supply these
resources on demand from their large pools installed in data
centers
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sche Schematic diagram of cloud computing.
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Working process of the deployment of cloud computing
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Deployment models of cloud computing. There are three
deployment models of cloud computing. They are:- Public. Hybrid.
Private. community
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Public cloud applications, storage, and other resources are
made available to the general public by a service provider. These
services are free or offered on a pay-per-use model. public cloud
service providers like Amazon AWS etc own and operate the
infrastructure and offer access only via Internet.
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Hybrid cloud is a composition of two or more clouds (private,
community or public) that remain unique entities but are bound
together. Hybrid cloud architecture requires both on-premises
resources and off- site (remote) server-based cloud infrastructure.
Hybrid clouds lack the flexibility, security and certainty of
in-house applications. Hybrid cloud provides the flexibility of in
house applications with the fault tolerance and scalability of
cloud based services.
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Community cloud shares infrastructure between several
organizations from a specific community with common concerns
(security, compliance, jurisdiction, etc.) All these community
shares are managed internally or by a third party and hosted
internally or externally. The costs are spread over fewer users
than a public cloud (but more than a private cloud), so only some
of the cost savings potential of cloud computing are realized.
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Private cloud is cloud infrastructure operated solely for a
single organization. Private cloud are managed internally or by a
third party and hosted internally. private cloud project requires a
significant level and degree of engagement to virtualize the
business environment. IT will require the organization to
reevaluate decisions about existing resources.
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Working process of deployment clouds.
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Graph of the global demands of cloud computing.
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Cloud computing takes very quickly in the market because of his
properties. IT is a cost effective one.It is also a one reason to
take cloud computing in the market. IT is helpful for small
industries business to compete the world. IT has many applications
to satisfy the customer requirement.