Cloud Computing - What it is and How it Works

Nowadays, the concept of Cloud Computing is an emerging IT delivery model. It is a rising computing technology that uses both the Internet, and central remote servers, located within the Internet, to maintain data and applications. The technology lets consumers, enterprises and businesses, to use applications, without having any need for software, or hardware installation, providing an always on access capability, to their files at any computer with Internet access, at any place and any time.
The Internet is basically the, "cloud" for all the applications, and services that are available to be accessed by subscribers. A person simply has to log into their desired computer application - for example, a sales force or office automation program, a web service, a data storage service, spam filtering, or blog sites. Usually, you get access to these programs by monthly or annually paid subscriptions. This technology allows for far more efficient computing by centralizing storage, memory, and processing.
Cloud computing, basically consists of hardware, and software resources, which are made available on the Internet. These are specifically known as cloud computing services. These services normally, provide access to advanced software applications, and high-end networks of server computers. The services of this technology can be chiefly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS).
Cloud computing has become very significant, in the IT and business world. This is due to the countless benefits driven from this concept. Advantages can be obtained from this massive web infrastructure by both small and medium sized businesses. Moreover, many huge enterprises and governments are now shifting towards cloud computing, because of its greater significance and importance.
Cloud Computing, is in frenzy these days, because it can considerably reduce IT costs and other technology complexities, whilst improving workload optimization, and service delivery. The technology is extremely scalable. It provides a superior user experience.
Furthermore, it hardly requires any time to be arranged, and established since there is no need to buy hardware, software licenses or their implementation services. Also unlike other services, there are only skilled practitioners, dealing in cloud computing. Normally, whenever any technology becomes all the rage and is recognized, a lot of people start to become more interested in it. In the case of cloud computing, vendors; specifically the more reputable ones, offer their customers very reliable services, with unlimited storage and computing capacity. Some of these vendors include Microsoft, Google, IBM, Yahoo Inc. etc.
In cloud computing, there are two basic general types of clouds: public cloud and private cloud. A public cloud, typically sells services to anyone on the Internet. Anyone can use it. There is usually no or very little privacy as such involved in it. A private cloud on the other hand, is usually a proprietary network, or a data center that provides hosted services to a restricted number of people. When a service provider uses public cloud resources, to create a private cloud, the result is often called a virtual private cloud or a hybrid.
Cloud Computing offers a significant amount of potential benefits but at the same time a balance has to be maintained on the downsides of using this technology such as diminished privacy and control of your data.

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