Cloud Computing.......

A brief intro on cloud computing.......

What is cloud computing?
what does it do?
Is it useful in having cloud computing?
what are the companies that are involving in cloud computing?
what are the major platforms they are taking in cloud computing?
what is meant by Amazon EC2?
what that actually do?
what are the other cloud computing organizations?
why they are using only particular platform in building the cloud computing ?
what are the different problems we will face in cloud computing?
what are the different uses that we are gaining in using this cloud computing?
where actually the cloud computing will be there?
I mean where the servers actually placed?
what will be the approximate configuration followed by those cloud computing servers?
Is it costly in providing services through cloud computing?
Is the organization providing their services through cloud computing will get profits?

Cloud computing:::::::::Cloud computing a type of computing environment which provides ability to handle growing amount of work in a graceful manner
and that can be readily extended and often virtualized services are provided over the internet.
virtualized services in the sense Abstraction of resources and software implementation of machine that executes programs as in real machine.
Users need not have knowledge ,expertise in or control over the technology infrastructure in cloud computing.
It facilitates deployment of applications without the cost and complexity of buying and managing the underlying hardware and software layers,
providing all of the facilities required to support the complete life cycle of building and delivering web applications and services entirely available from
the Internet—with no software downloads or installation for developers, IT managers or end-users. It's also known as cloudware.

Major use of cloud computing is cloud computing users can avoid capital expenditure on the software,hardware it there is no need to spend amount frequently
for upgrading their software,hardware..

“In this architecture, the data is mostly resident on servers
‘somewhere on the Internet’ and the application runs on
both the ‘cloud servers’ and the user’s browser.”
—Eric Schmidt in ‘Information Factories’ by G. Gilder
The Architectural Services Layers of Cloud Computing. .
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)

For those developers and enterprises who want to embrace cloud computing, Sun is
developing critical technologies to deliver enterprise scale and systemic qualities to this
new paradigm:

Interoperability — While most current clouds offer closed platforms and
vendor lock-in, developers clamor for interoperability. Sun’s open-source
product strategy and Java™ principles are focused on providing interoperability
for large-scale computing resources. Think of the existing cloud “islands” merging
into a new, interoperable “Intercloud” where applications can be moved to and
operate across multiple platforms.

High-density horizontal computing — Sun is pioneering high-power-density
compute-node architectures and extreme-scale Infiniband fabrics as part of our
top-tier HPC deployments. This high-density technology is being incorporated
into our large-scale cloud designs.
Data in the cloud — More than just compute utilities, cloud computing is
increasingly about petascale data. Sun’s Open Storage products offer hybrid
data servers with unprecedented efficiency and performance for the emerging
data-intensive computing applications that will become a key part of the cloud



These technology bets are focused on driving more efficient large-scale cloud
deployments that can provide the infrastructure for next-generation business
opportunities: social networks, algorithmic trading, continuous risk analysis,
and so on.

“The rise of the cloud is more than just another platform
shift that gets geeks excited. It will undoubtedly transform
the IT industry, but it will also profoundly change the way
people work and companies operate.”
—The Economist, “Let it Rise,” 10/23/08


Example of the Company that providing services through Cloud Computing:::::AMAZON EC2

Cloud offering: Amazon Web Services, a half-dozen services including the Elastic Compute Cloud, for computing capacity, and the Simple Storage Service, for on-demand storage capacity.

Why we're watching it: Amazon is one of the true innovators in Web-based computing, offering pay-as-you-go access to virtual servers and data storage space. In addition to these core offerings, Amazon offers the SimpleDB (a database Web service); the CloudFront (a Web service for content delivery); and the Simple Queue Service (a hosted service for storing messages as they travel between computers). By launching the Elastic Compute Cloud in 2006, well before most of its competitors, Amazon has become almost synonymous with "cloud computing." But criticisms are starting to pop up regarding Amazon's reliability and service-level agreements.

CEO: Jeffrey Bezos, Amazon's founder, was previously a financial analyst.

How Amazon got into cloud computing: One of the largest Web properties in existence, Amazon always excelled at delivering computing capacity at a large scale to its own employees and to consumers via the Amazon shopping site. Offering raw computing capacity over the Internet was perhaps a natural step for Amazon, which had only to leverage its own expertise and massive data center infrastructure in order to become one of the earliest major cloud providers.

Who uses the service: Tens of thousands of small businesses, enterprises and individual users. Prominent customers include the New York Times, Washington Post and Eli Lilly

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