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Cloud Computing – Emerging Computing Technology

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Cloud Computing, a virtualization and distributed computing technology that combines many server infrastructure delivering a slew of cloud-based services, from full-blown applications to storage services to antivirus services.

According to Berkeley scientists, “Cloud computing refers to both the applications delivered as services over the Internet and the hardware and systems software in the datacenters that provide those services. The services themselves have long been referred to as Software as a Service (SaaS), so we use that term. The datacenter hardware and software is what we will call a Cloud.”

With this cloud computing technology, the local computers no longer have to do all the heavy computing process or data storage. The network of computers / server that make up the cloud handles them instead by centralizing storage, memory, processing and bandwidth provide greater computing capacity and data storage via online without the costs and headaches of owning all the hardware. The only thing the user’s computer needs to be able to run is the cloud computing system’s interface software, which can be as simple as a Web browser, and the cloud’s network takes care of the rest.

cloud computing

Cloud computing are broadly divided into three categories  Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS).

Infrastructure-as-a-Service like Amazon Web Services provides virtual server instances with unique IP addresses and blocks of storage on demand. Customers use the provider’s application program interface (API) to start, stop, access and configure their virtual servers and storage. In the enterprise, cloud computing allows a company to pay for only as much capacity as is needed, and bring more online as soon as required. Because this pay-for-what-you-use model resembles the way electricity, fuel and water are consumed, it’s sometimes referred to as utility computing.

Platform-as-a-service in the cloud is defined as 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. PaaS providers may use APIs, website portals or gateway software installed on the customer’s computer. Force.com, (an outgrowth of Salesforce.com) and GoogleApps are examples of PaaS. Developers need to know that currently, there are not standards for interoperability or data portability in the cloud. Some providers will not allow software created by their customers to be moved off the provider’s platform.

In the software-as-a-service cloud model, the vendor supplies the hardware infrastructure, the software product and interacts with the user through a front-end portal. SaaS is a very broad market. Services can be anything from Web-based email to inventory control and database processing. Because the service provider hosts both the application and the data, the end user is free to use the service from anywhere.

So, Cloud computing is a very useful computing technology that helps reduces the need for advanced hardware on the client side. Instead, you could buy an inexpensive computer terminal and just enough processing power to run the middleware necessary to connect to the cloud system. You wouldn’t need a large hard drive because you’d store all your information on a remote computer.

Below is the some software that utilizing cloud computing:

1. Cloud AntiVirus

2. Cloud System Optimizer: Cloud System Booster