How Cloud Computing Works???

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To simplify the architecture of cloud computing, the cloud computing system can be divided into two ends, which is the front end and back end. Both ends are connected to each other with a network. The commonly used network to connect these two ends is the Internet. The front end includes the users or clients’ computers, whereas the back end includes various computers, servers and data storage systems which is also known as the ‘cloud’ section of the system.

The front end consists of computer network and applications that provides an interface for the users to access the back end of the system. The user interface of each cloud computing system varies from one another. Certain systems have their own distinctive applications that offer clients network access. The back end made up of a group of servers and computers that can be accessed by the public through the Internet. It can be operated from a single or multiple locations. The back end also comprises of any form of computer program, such as video games and data processing applications. In between of the front end and the back end of the cloud computing system is the central server. It monitors traffic and requests from clients to ensure everything runs smoothly. Protocols and a middle-ware are required to allow communication to take place between networked computers.

This is the process of how cloud computing works:

(Diagram 1, Cloud Computing Architecture, with reference from Michael Miller. 2009. Cloud Computing: Web-Based Applications That Change the Way You Work and Collaborate Online. Que Publishing, United States. )

For example, when a user requests for an application or a document to be opened, the request is sent to the system management. The system management then searches for the exact resources which have been requested by that user. The system’s provisioning services then pick out the necessary resources from the server, and launch the web application requested. The usage of the back end is tracked from time to time to ensure that the resources are apportioned to the appropriate user.

What do you think about our explanation on how cloud computing works? Is it easy to understand? Or confusing?

Reference:

Printed Reference:

Michael Miller. 2009. Cloud Computing: Web-Based Applications That Change the Way You Work and Collaborate Online. Que Publishing, United States.

Internet Reference:

Jonathan Strickland, How Stuff Works: Cloud Computing Architecture

URL: http://communication.howstuffworks.com/cloud-computing1.htm