To understand how cloud architecture works, the cloud has to be divided into different layers. These layers are the front-end and the back-end layers. Front-end layer is that part of the cloud which users can interact with. For example, when we log in to our Gmail account, we see the UI (user interface) where everything works on event-driven buttons and graphics. Similarly, a software also runs in the front end of the cloud. Again, the back-end comprises of hardware as well as software that delivers the back-end data from the database to the front end.
Cloud uses a network layer to connect different devices to provide access to resources that are residing in the centralized data centre of the cloud. Cloud technology users can use the data centre through company's network or internet facilities. Various advantages are provided by this technology; as users can access cloud from anywhere at any time, but the network bandwidth should have to be more. This technology not only facilitates desktop and laptop users but the mobile users can also access their business systems based on their demand.
As we already know that cloud computing is fast and efficient, applications running on the cloud take advantages of the flexibility and computing power i.e. the speed of processing a task. Many computers of a single organization work together along with their application on cloud as if all the applications were running on a single machine. This flexibility of accessing the cloud resources allows users to use much or little of the resource based on the demand.
In the Cloud computing system architecture, there is another mechanism of shifting the workload. Local machines don't have to perform massive lifting operations when it comes to run applications. Cloud technology can handle those heavy loaded tasks automatically easily and efficiently. This brings down the hardware & software demands. The only thing that the users have to think is the cloud computing interface software of the system, which works merely as a web-browser in the front end of the user. The cloud's network takes care of the rest along with the back-end.
The back-end is connected to each other through a virtual network or internet. Other than that, there are few more components such as Middleware, cloud resources, etc. that includes the cloud computing architecture. The backend is used by service providers that include various servers, computers, virtual machines & data storage facilities that are combined to form the cloud technology. Its dedicated server handles each application in the system. The front end includes the cloud computing system or network that is used for accessing the cloud computing system. The cloud computing systems' interface varies from cloud to cloud.
The back-end has two principal responsibilities:
- Provides traffic control mechanisms, security postures & governing the protocols
- To employ those internet protocols that are connected to the networked computer for communication
One central server is used to manage the entire cloud system architecture. The server is solely responsible for handling the smoothness of traffic without disruption. Middleware is a particular type of software that is used to perform processes & also connects networked computers to each other. Depending on the demand of client/user, the storage is provided by the cloud technology's service provider.