Page 17 - DCAP609_CLOUD_COMPUTING

Cloud Computing

Notes 8. With cloud computing, the software programs you use are not run from your personal
computer, but are rather stored on servers accessed via the ..............................
9. For .............................., cloud computing provides increased amount of storage and processing
power to run the applications they develop.
10. Any Web-based application or service offered via cloud computing is called ..............................

Case Study Cloud Computing and Web 2.0 Separated at Birth?

f you are at all familiar with the concept probably also heard of something called Web
2 with, on the face, sounds suspiciously similar to cloud computing. In fact, cloud
Icomputing is similar to Web 2.0; in many ways, the one is a subset of the other.

What exactly is Web 2.0? To my mind, it is a bit of a buzzword that different people define
in different ways. Tim C’Reilly, the so-called Godfather, father of Web 2.0, defines it as
“the network as platform, spanning all connected devices.” Others define the concept of
Web 2.0 as network as a transition from isolated information silos (Web 1.0) to interlinked
computing, platforms that function like locally available, software in the perception of
the user. Still others define Web 2.0 in collaborative terms, because all the websites get
their value from the actions of users. These definitions of Web 2.0 sound a lot like cloud
computing, but, without the technological underpinnings. That is, cloud computing is
defined by its architecture and infrastructure (a grid of interconnected computers/servers
functioning as a whole), whereas Web 3.0 is defined by how the user sees/is serviced by
the system. In other words, cloud computing is about computers, Web 2.0 is about people.
Or, as Tim O’Reilly puts it:

Cloud computing refers specifically to the use of the Internet as a computing platform;
Web 2.0, as I have defined it, is an attempt to “explore and explain the business rules of that
platform”.

Perhaps the terms cloud computing and Web 2.0 are just two different ways of looking at
the same phenomenon. Or, equally likely, perhaps cloud computing is a specific Web 2.0
technologies. In any instance, know that both terms sprang up at about the same point on
computing evolutionary timeline and both concepts promise similar results to end users.

At the end of the day, it does not matter whether you view something like Google Docs or
Microsoft Live Mesh as a cloud service or a Web 2.0 application, or as both. What matters
more than a particular label is how that technology impacts the user. In this respect, both
cloud computing and Web 2.0 offer very real benefits for all involved.
Questions:
1. What is the difference between cloud computing and Web 2.0?

2. What are the benefits of Web 2.0?
Source: Cloud Computing by Miller Michael

1.5 Summary

Majority of data is stored on local networks with servers that may be clustered and sharing
storage. This approach has developed into a stable architecture, and provides decent
redundancy when arranged right.

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