Thursday, June 30, 2011

Cloud Computing PPT For Learning Cloud Computing Basics

Posted by shah shahid

Cloud Computing PPT For Learning Cloud Computing Basics

There are many people out there who wanted to learn to know What is cloud computing. Many search for this term, and many wants to see "Cloud Computing PPT" to learn this. For this reason today on this non stupid blog lets see what is cloud computing with some text and PPT help.

First of all what is cloud computing?

Cloud computing is nothing but saving your worked data in the clouds (i.e. on third party server) not your local hard disk. For this you require internet connection. Integrated online services such as Google, Amazon, IBM Blue Cloud, Salesforce and Microsoft's Azure have become a future trend of shared data center, accessible, secure and scalable for companies at a cost like any other service.

Cloud Computing, a term that is defined as a technology that offers services through the Internet platform. Users of this service have access to use it free or paid, it all depends on the service they need.

The term is a trend that responds to multiple integrated features. One example of this "cloud" is the service provided by Google Apps which includes a browser to the storage of data on its servers. Programs should be in the online servers and can access services and information through internet.

Characteristics of cloud computing
One of the main differences of cloud computing is that there is no need to understand the infrastructure behind it, it becomes "a cloud" where applications and services can easily grow (scale), run fast and almost never fail, without knowing details of how this "cloud."

This type of service is paid according to some measure of consumption, not the equipment used by itself, but for example in electricity consumption or CPU / hour in the case of Amazon EC2. Other features include:

    * Self-healing: In case of failure, the last backup of the application automatically becomes the primary copy and generate a new one.
    * Scalable: The entire system / architecture is predictable and efficient. If a server handles 1,000 transactions, 2 2000 servers to handle transactions.
    * Governed by a Service Level Agreement (SLA) that defines a number of policies and what are the expected timing and performance should peak, create more instances. In the case of AWS still wondering if your SLA is adequate.
    * Virtualized: Applications are independent of the hardware on which to run, even several applications can run on a single machine or an application can use several machines at once.
    * Multipurpose: The system is created in such a way that allows different customers to share the infrastructure without worrying about it and without compromising your security and privacy

Examples of Cloud Computing

There are several large companies that are dedicated to providing these services, promoting easy access to our information, lower costs, scalability, and many features that makes us think of comfort we provide, among them are:

    * Google Apps: provides the service of business applications such as Gmail, Google Talk, Google Calendar and Google Docs, etc.

    * Amazon Web Services: The services offered are the Amazon EC2 ™, Amazon ™ S3, SimpleDB ™, Amazon SQS ™.

    * Azure: Microsoft provides operating system services, hosting, systems development.

    * Rackspace, a popular hosting company, Mosso is behind a company which offers a basic hosting package and from this scaled as needed (and not migrate servers). Rackspace recently acquired JungleDisk, a popular client for Amazon S3 and that future will be integrated with CloudFiles another Mosso service.

Integrating services and dissent

The Cloud Computing offers an interesting overview about the integration of technologies, RWW refer to a new era that includes 3 layers: SaaS, Cloud Computing, Core Technology in explaining the importance of such integration.

On the other hand Richard Stallman, founder of the Free Software Foundation and GNU Project leader said he was against the use of "cloud":

One reason why they should not use web applications is that you lose control ... it's as bad as using proprietary software.

Both views are valid I think the first is a way to integrate the options are to take advantage of current technology and respond to trends. However, Stallman is correct in its position and that this trend is provided all information to third party services, somehow lost control.
Advantages and disadvantages of Cloud Computing

Among the advantages of Cloud Computing may include:

    * Access to information and services anywhere.
    * Free and pay-as-user needs.
    * Companies with ease of scalability
    * Processing and storage capacity without installing machines locally.

Disadvantages include:

    * Access all the information to third parties.
    * Dependence on online services.

Here is the Cloud Computing PPT for better understanding