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Cloud ComputingCloud Computing
By
RK Naidu(bodem)
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Keyto the definition ofcloud computing is the cloud itself. Here , the
cloud is a large group of interconnected computers.
These computers can be personal computers or networkservers; they
can be public or private.
This cloud ofcomputers extends beyond a single companyorenterprise.
The applications and data served bythe cloud are available to broad
group ofusers, cross-enterprise and cross-platform.
Access is via the Internet. Anyauthorized user can access these docs and
apps from anycomputer over anyInternet connection.
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keyproperties ofcloud computing:
Cloud Computing Is User Centric :
Once as a user are connected to the cloud, whatever
is stored theredocuments, messages, images, applications, whatever
becomes authorized to the user access them. In addition, not only is
the data, but one can also share it with others. In effect, anydevice that
accesses your data in the cloud also becomes yours.
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Cloud Computing Is Task-Centric:
Instead of focusing on the application and what it can
do, the focus is on what one need done and how the application can do
itfor us. Traditional applicationsword processing, spreadsheets, email,
and so onare becoming less important than the documents theycreate.
Cloud Computing Is Powerful:
Connecting hundreds or thousands of computers
together in a cloud creates a wealth ofcomputing power impossiblewith a
single desktop PC.
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Cloud Computing Is Accessible:
Because data is stored in the cloud, users can instantly
retrieve more information from multiplerepositories. We are not
limited to a single source ofdata, as we do with a desktop C.
Cloud Computing Is Intelligent:
With all thevarious data stored on the computers in a cloud,
data mining and analysis are necessaryto access that information in an
intelligent manner.
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Cloud Computing Is rogrammable:
Many of the tasks necessary with cloud computing
must be automated. For example, to protect the integrity of the data,
information stored on a single computer in the cloud must be replicated
on other computers in the cloud. If that one computer goes offline, the
clouds programming automatically redistributes that computers data to a
new computer in the cloud.
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How Cloud Computing Works?
Sun Microsystemss slogan is The network is the
computer, and thats as good as any to describe how cloud computing
works. In essence, a network of computers functions as a single
computer to serve data and applications to users over the Internet. The
network exists in the cloud of I addresses that w e know as the
Internet, offers massive computing power and storage capability, and
enables wide scale group collaboration.
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Understanding Cloud Architecture:
Individual users connect to the cloud from their own personal
computers or portable devices, over the Internet. To these individual users,
the cloud is seen as a single application, device, or document. The hardware
in the cloud (and the operating system that manages the hardware
connections) is invisible.
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Understanding Cloud Storage:
One of the primaryuses ofcloud computing is for data
storage. With cloud storage, data is stored on multiple third-partyservers,
rather than on the dedicated servers used in traditional networked data
storage. When storing data, the user sees avirtual serverthat is, it appears
as if the data is stored in a particular place with a specific name.
But that place doesntexist in reality. Its just a pseudonym
used to referencevirtual space carved out of the cloud. In reality, the
users data could be stored on anyone or more of the computers used to
create the cloud.
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Understanding Cloud Services:
Anyweb-based application or service offered via cloud
computing is called a cloud service. Cloud services can include anythingfrom
calendar and contact applications to word processing and presentations.
With a cloud service, the application itself is hosted in the cloud.An individual userruns the application over the Internet, typicallywithin a
web browser.
The browser accesses the cloud service and an instance ofthe
application is opened within the browser window. Once launched, the web-
based application operates and behaves like a standard desktop application.
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Benefits From Cloud Computing:
Collaborators:
The abilityto share and edit documents in real time between multiple users is one ofthe
primarybenefits ofweb-based applications; it makes collaboratingeasyand even fun.
Road Warriors:
you can access a singleversion ofyour documentfrom anylocation.
Cost- Consious users:
Another group ofusers who should gravitate to cloud computing are those who are cost
conscious. With cloud computingyou can save moneyon bothyour hardware and
software.
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Thus cloud computing provide a super-computing
power.This cloud ofcomputers extends beyond a single
companyorenterprise.
The applications and data served bythe cloud are
available to broad group ofusers, cross-enterprise and cross-
platform.
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