what is cloud computing?
- 9 years agoFavorite Answer
Cloud computing is a general term for anything that involves delivering hosted services over the Internet. These services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). The name cloud computing was inspired by the cloud symbol that's often used to represent the Internet in flowcharts and diagrams.
A cloud service has three distinct characteristics that differentiate it from traditional hosting. It is sold on demand, typically by the minute or the hour; it is elastic -- a user can have as much or as little of a service as they want at any given time; and the service is fully managed by the provider (the consumer needs nothing but a personal computer and Internet access). Significant innovations in virtualization and distributed computing, as well as improved access to high-speed Internet and a weak economy, have accelerated interest in cloud computing.
A cloud can be private or public. A public cloud sells services to anyone on the Internet. (Currently, Amazon Web Services is the largest public cloud provider.) A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people. When a service provider uses public cloud resources to create their private cloud, the result is called a virtual private cloud. Private or public, the goal of cloud computing is to provide easy, scalable access to computing resources and IT services.
Infrastructure-as-a-Service like Amazon Web Services provides virtual server instanceAPI) 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.
- strausbaughLv 44 years ago
Cloud computing is a colloquial expression used to describe a type of diverse computing techniques that contain a extensive style of pcs that are related by a actual-time communique community (many times the internet). Cloud computing is a jargon term with out many times common non-ambiguous scientific or technical definition. In technological information, cloud computing is a synonym for disbursed computing over a community and ability the skill to run a software on many related pcs on the comparable time. the recognition of the term could be attributed to its use in merchandising and marketing to sell hosted centers interior the experience of utility provider provisioning that run shopper server utility on a distant region.
- 9 years ago
In computing terms, the "Cloud" refers to the Internet. Cloud computing, then, is when the normal aspects of desktop computing, such as storage and processing, are instead done by other computers on the Internet that you access remotely.
Google Docs is an example of this, because it is a word processing program that exists on the Internet instead of your hard drive, and all of your files are also kept on te Internet.
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- 7 years ago
Most small businesses have a server in their office with a series of desktop computers
networked to the server. That hardware layer is typically referred to as "the network," or "the
information systems." With cloud computing, imagine that you no longer have the server in your
office. Instead it is out there somewhere else on the Internet, or in other words it is "in the cloud."Source(s): http://www.estreamdesk.com/
- Brad/Diana BLv 59 years ago
Cloud computing refers to the provision of computational resources on demand via a computer network.
- RonaldLv 76 years ago
The fairly new concept of Cloud Computing has hit the world of business with a ‘BANG’, and is being adopted, not only by Small and Medium sized Businesses but also by Large Enterprises. This is rapid shift towards this emerging technology is due to its ability to cut down IT costs by many folds, and the allowance it gives to enterprises to focus their energies and resources to their core business. In this article, I will attempt to explain, briefly and without the use of a lot of technical terms, what cloud computing is, and how it is helping businesses do what they are created to do.
The ‘CLOUD’ in Cloud Computing
If you have an email account like Hotmail, Gmail or Yahoo-mail etc., then you are already using cloud services being offered to you by your email service provider. The Cloud is a collection of all the servers and IT infrastructure being utilized by your email service provider to manage your email account and store its content. Since you do not have any physical evidence of your email being managed and handled, yet it seems to be happening, we say that it is happening somewhere in the Cloud. The Cloud of servers, functioning in in large datacenters, you may never know where. The benefit of having an email account with these service providers is that it is completely free for you, the user. There is no physical equipment, apart from a laptop, desktop or mobile device that you need to have, along with an internet connection, to access your email.
Adding ‘COMPUTING’ to the Cloud
Like with email providers, Cloud Computing service providers also maintain their own servers and complete IT infrastructures residing at various datacenters through which they are able to offer Cloud Computing solutions to their customers. UNLIKE email providers, however, Cloud Computing service providers rent out not just email capabilities, but entire virtual desktops and servers, software, data storage capabilities, data security, disaster recovery and management solutions and a whole bunch of other stuff, which the user may access from any place, at any time, using any desktop, laptop or mobile device, along with an internet connection.
Cloud Computing Possibilities
Imagine being able to access your own desktop, and all the data stored thereon, while sitting at a train station or an airport. Imagine hundreds of your employees having access to their own personalized desktops and all the information that they require, from anywhere, without actually ever owning a single physical machine. Imagine giving access to software to all your employees, without ever worrying about maintain a record of the number of licenses you have available. Imagine utilizing all of these services for a nominal monthly charge, and being able to add or reduce their number as and when required. Imagine being rid of the increasingly high costs of maintaining a complete IT infrastructure, along with skilled IT labor to manage the infrastructure, forever. These are a few of the many possibilities of utilizing Cloud Computing services. Cloud Computing providers host these services on their own IT infrastructure, which is maintained by their team of highly skilled IT professionals and rent them out to you, relieving you of the HUGE IT costs and headaches. In a nutshell, due to the reason mentioned above, it is the opinion of this writer, that Cloud Computing is THE complete IT solution, and the way to the future for any enterprise, regardless of its size, scale and nature of business.