Cloud computing model include a front (front end)
and a back side (back end). These two components are connected through a
network; in most cases is the Internet. The front is transportation through
which users interact with the system; the back part is cloud. The front end
includes a client computer or business computer network and applications used
to access the cloud. The back section offers applications, computers, servers
and data storage to create cloud services.
Cloud computing with multi-storey building, each
floor has a different function. This stratification of the cloud component has
provided a means for the layers of cloud computing to become a commodity like
electricity, phone service or natural gas. Goods which sells cloud computing is
the ability to calculate the costs and lower costs for users. Cloud computing
is ready to become a super-utility services next.
Monitor VM (virtual machine monitor VMM-) provides
the means to use the utility and cloud computing, VMM is a program on a host
computer system that allows a computer to support multiple media implementation
of identical cases. From the user's perspective, the system is a stand-alone
computer, completely isolated from other users. In fact, the users are served
by the same computer. A virtual machine is an operating system (OS) is being
managed by an underlying control program allowing it to appear like multiple
operating systems. In cloud computing, VMM allows the user to monitor and thus
manage aspects of the process such as data access, data storage, encryption,
addressing, topology, and transfer workloads.
The cloud layer is provided:
Floor
infrastructure is the foundation of the cloud. It
includes physical assets - servers, network devices, storage drives, etc ..
Infrastructure as a Service (IaaS) has providers such as IBM® Cloud. When you
use actual IaaS not control the underlying infrastructure, but you have control
over operating systems, storage, deployed applications and to a limited extent,
have control over the choices select network components.

The
middle floor is the system platform. It provides the
infrastructure for the application. Platform as a service (PaaS) provides
access to the operating system and related services. It provides a way to
deploy applications to the cloud using programming languages and tools
supported by the provider. You do not need to manage or control the underlying
infrastructure, but you can control applications deployed in some degree and
have the right to control the use of applications configured on a computer
environment word.
The
top floor is the application layer, layer which most people
see as the cloud. Applications run here and are provided at the request of the
user. Software as a service (SaaS) vendors have as Google Pack. Google Pack includes
applications; these tools can be used over the Internet, such as Calendar,
Gmail, Google Talk, Docs and more.
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