Cloud Computing With Architecture

Cloud Computing

A cloud refers to a distinct IT environment that is designed for the purpose of remotely provisioning salable and measured IT resources.

The term originated as a metaphor for the Internet which is, in essence, a network of networks providing remote access to a set of decentralized IT resources.

 Prior to cloud computing becoming its own formalized IT industry segment, the symbol of a cloud was commonly used to represent the Internet in a variety of specifications and mainstream documentation of Web-based architectures. This same symbol is now used to specifically represent the boundary of a cloud environment.

cloud symbol

Architecture of cloud computing:

cloud computing architecture

The three cloud computing layers are:

layers

Ø  Infrastructure as a service(IAAS)

IAAS provider gives low-level abstraction of physical device Amazon Web Service is an example of IAAS.

Ø  Platorm as a service(PAAS)

PAAS provider offer managed services like Rails,Django etc. One good example of PAAS is Google App Engineering.

Ø  Software as a Service(SAAS)

SAAS Provider offer an actual working software application to clients.Sales-force and GitHub are good example of SAAS.

How cloud computing works

Cloud computing services all work a little differently, depending on the provider. But many provide a friendly, browser-based dashboard that makes it easier for IT professionals and developers to order resources and manage their accounts.

Some cloud computing services are also designed to work with REST APIs and a command-line interface (CLI), giving developers multiple options.

What is Front End Cloud Computing?

Front-end is the side that is visible to the client, customer, or user. Front-end pieces include the user interface, and the client’s computer system or network that is used for accessing the cloud system.

You have probably noticed that different cloud computing systems use different user interfaces—for example, not only can you choose from a variety of web browsers (including Chrome, Safari, Firefox, etc.), but the Google Docs user interface is different than that of Sales-force.

What is Back End Cloud Computing?

On the other hand, the back-end pieces are on the side used by the service provider. These include various servers, computers, data storage systems, virtual machines, and programs that together constitute the cloud of computing services.

The back-end side also is responsible for providing security mechanisms, traffic control and protocols that connect networked computers for communication.

To briefly summarize: the front-end is the part you see, and the back-end is the computing that happens behind the scenes.