You may feel this blog is quiet Technical, but i tried to make this blog as simple as possible. In this web world or in computer world Cloude computing is making big and important role. The word Cloude, itself describes the large nos. and in computer world, it is large no of computers connected through a network. It is ability to connect all computers running at same time or working on same application or program. Cloude computing is mainly based on the internet. Or we can call as network based service. Actually it is nothing but real hardware and it work as a virtual hardware. Normally it is managed by software or applications running on actual hardware but running servers virtually. All these servers are placed in such a way that it can easily moved around and up and down without affecting the users.
The Cloude is further divided into 3 categories. And those are
Software - as a service
Platforms - as a service
Infrastructure - as a service
The tear “as a service” means connect remotely using internet. Actually applications are hosted on a server, which consumes less power or energy and users use these application from remote locations. Here user no needs to install or host applications on servers. They just need to connect these applications using authentication. It is basically offer on demand, typically by minute or by hour. And this is very beneficiary for users. So that user can have these services as per their convenient time. This whole computing is managed by service providers and user just need a computer and internet connection.
Cloude can be defined as public or private. Public Cloude computing provides services to any user on internet. (i.e. Amazon is providing their web services freely). But private Cloude computing is a proprietary network or a data center that supplies hosted services to a limited number of users. Also virtual private Cloude computing is very popular is the computing world. Actually in virtual private Cloude computing service provider uses public Cloude computing resources to create their private Cloude. But purpose on both the Cloude computing is to provide easy, scalable access to computing resources and IT services.
Lets talk about its 3 categories.
Software - as a service – in this service vendors are providing hardware and software or application and interact with the user through a front-end portal. These Services can be anything from Web-based email to inventory control and database processing. The main advantages of these services are free to use, because service provider hosts both the application and the data.
Platforms - as a service – it is a set of software and product development tools hosted on the provider's infrastructure. Developers create applications on the provider's platform over the Internet. It providers use of APIs, website portals or gateway software installed on the customer's computer. The best example for this service is Google apps.
Infrastructure - as a service – it is space provided on private Cloude as per the user requirement, example is Amazon web service provides virtual server instance to start, stop, and access and configure their virtual servers and storage. This Cloude computing allows a company to pay for only as much capacity as is needed and get all online as required.
Cloude computing it best way in these days. In Cloude computing we are managing hardware and software, which eliminates most of our headaches.