There has been a major shift in information technology which has affected not just the business model but also the architecture behind it. The way in which applications are developed, deployed, run, and delivered have all changed. This shift has given rise to two major ideas of computing and these are utility computing and cloud computing. Since they both work towards the development and deployment of applications this is why the two ideas are usually clubbed together. In this article, we understand both the methods of computing and the differences between utility computing vs cloud computing.
Cloud computing is a broad concept and it relates to the architecture underlying it under which the services are designed. It may be difficult to exactly describe cloud computing. It is basically the idea through which applications run on the cloud. The IT developers and those into operations use cloud computing because it lets them develop, deploy, and run applications that can easily be scalable, improve performance, and never ever fail. All this can be done without any concern as to where the infrastructure is actually set up.
Cloud computing is self-healing. This means that in the case of failure there is a backup instance of the applications that are ready to take over without any disruption. The system is also managed through the service level agreement that defines its various policies. In case the system has any loads and peaks then this creates additional instances for it to operate. The system is built in a way that lets many customers share the infrastructure at one time. The clients, however, are not aware of the same. This is possible without compromising on security and privacy.
Utility computing does need a structure like a cloud but its main focus is on the business model on which the computing services are based. It is basically one in which the customers will get the computing resources through a service provider and they pay as much as they consume. The main benefit of using utility computing is for its better economics. Utility computing lets companies pay for the resources of computing and they pay based on when and how much they need it.
Let us understand the difference between utility computing vs cloud computing. Utility computing is a precursor to cloud computing. Cloud computing does everything that utility computing does and also offers much more than that. Cloud computing is not restricted to any specific network but it is accessible through the internet. The resource virtualization and its scalability advantage and reliability are more pronounced in the case of cloud computing.
Utility computing can get implemented without cloud computing. Utility computing can be understood by say a supercomputer that rents out the processing time to various clients. The user will pay for the resources that they use.
Utility computing is more like a business model than a particular technology. Cloud computing does support utility computing but not every utility computing will be based on the cloud.
While utility computing and cloud computing are mostly grouped together there is a major difference between utility computing and cloud computing. Utility computing is basically related to the business model in the application infrastructure resource. This could either be hardware or software which gets delivered. Cloud computing relates to the way it is designed, deployed, built, and run applications that operate in a virtual environment. It allows the sharing of resources and boasts of an ability to grow dynamically, to shrink when needed as well as self-heal when required.
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