You are connected to an ISP (Internet Service Provider) via cable, DSL, T1, dish, EVDO (3G and 4G high speed wireless broadband), and dial up. You use these services to check your email, manage your website, archive your data online, pay bills with online bill pay, order online, stream music (such as Internet Radio), stream movies, and more.
There are many approaches online and other media to explain this cloud concept and technology. To help you understand, this article summarizes the definitions and generally explains as simple as possible what Cloud Computing is. Afterwards, you can continue to research better on the cloud technologies and learn more how to can get started in using these services.
The Cloud technology description has been frequently overused and misused. The term “Cloud” (not related to the clouds you see in the sky) refers to the way that networks outside of your home, office, and companies ( Internet in this case ) have been represented in engineering and network growth and development for some time. In reality, 'The Cloud' is just the iteration of a concept that has been called many things in the past including ASP (application service provider), on-demand utility computing and as a service (such as Software as a Service, Infrastructure as a Service).
Basically, the cloud technology has evolved to as the next stage in Internet technology providing end user a pool of resources (servers, storage, applications, security, streaming entertainment, and voice services) for as-needed solutions from a provider’s network center. Plain and simple, cloud computing is the use of computing resources that are delivered as a service over a network (in this article, the Internet). This eliminates the need for on-site equipment, maintenance, and management. Cloud technologies enable IT departments to increase or add capabilities as needed without:
Cloud computing has four essential characteristics:
The world of the cloud has lots of participants:
To put this technology in perspective, below is a high level diagram showing the cloud computing logical diagram. This was taken from Wikipedia as a very good view.
There are many types of public cloud computing:
Most common in the business model would be the software as a service, data as a service, security as a service, and storage as a service. The cloud providers manage the infrastructure and platforms on which the applications, data, and security referred to as “on-demand software and service.>They provide end users immediate access to new, always-on features from nearly any device in any location. They also provide the business a predictable, subscription-based, pay-per-use way to fund IT.