What Is Cloud Computing

hostwitus · Regular Member Joined: 21 Apr 2010 Posts: 179

I know it is pretty late. But just wanted to put in my two small cents here.

The original concept of cloud computing was a utility-like service that would provide a pool of shared resources for clients to use on-demand – thereby allowing customers to leverage a large pool of resources without having to bear the burden of the capital cost of building or maintaining the entire infrastructure themselves. In the web hosting world what we refer to as “cloud computing” sometimes aligns with this original concept, sometimes not so much, depending on the service in question.

All cloud products that are offered as a web hosting service have one thing in common: they are virtualized. "Virtualized" means that your “server” (whether called an “instance”, “slice” or something else by your service provider) is actually a virtualized operating system (kernel) that is referred to as a “virtual machine”, or VM. The VM is running inside a “container” system, which is in charge of managing the resources of multiple VMs running alongside yours. There are several products that do this, some of which you may be familiar with – some of the more well known products out there are VmWare, VirtualBox, and XEN.
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hostwitus · Regular Member Joined: 21 Apr 2010 Posts: 179

Although all cloud products are virtualized, not all virtualized hosting services are cloud services. What distinguishes the two is:

-> The ability to scale dynamically
-> Adding or removing resources can be controlled by the customer through an API
-> Have the utilized resources billed out by some small increment, such as by the hour or day (although some providers do have larger billable increments, such as week or months)

This flexibility is generally considered to be the largest advantage of a cloud product over your more standard virtualized private server, it allows you to dial up and down resources, on-demand and as-needed, without having to commit to a lot of hardware that comes with a bunch of unused overhead during non-peak hours

Once you are on a virtualized platform, your “server" becomes platform agnostic. It is now a VM. This means that it will run anywhere the “container” will run. It doesn't matter what the hardware is. This means that (compared to an operating system installed directly on some hardware) its trivially easy to move your VM from one container to another – from server to server, or even from datacenter to datacenter. The various virtualization technologies have different ways to do this, with different requirements, but they almost all have some way to “migrate” a VM from one host to another. Here is where an important distinction between virtualized private server (or “VPS”) services and cloud services comes into play.
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georgesmith1 · Junior Member Joined: 16 May 2011 Posts: 77

Thanks for information for this topic. you have give very nice information on this topic.
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hostwitus · Regular Member Joined: 21 Apr 2010 Posts: 179

Nile Hadwards · Junior Member Joined: 18 May 2010 Posts: 89

Maintenance cloud computing applications are easier to maintain, since they don't have to be installed on each user's computer. They are easier to support and to improve since the changes reach the clients instantly.
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amioye · Junior Member Joined: 18 Aug 2010 Posts: 21

Cloud computing will certainly make life more easier in coming future. I just loved this concept.
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jamessmith4152 · Guest

Hello,

They are virtualized. "Virtualized" means that your server whether called an instance, slice or something else by your service provider) is actually a virtualized operating system that is referred to as a virtual machine, or VM. The VM is running inside a container system, which is in charge of managing the resources of multiple VMs running alongside yours.

Thanks,

Arthur Lismer

elisa · Posted: Wed Nov 30, 2011 10:49 am Post subject:

Cloud computing overlaps some of the concepts of distributed, grid and utility computing, however it does have its own meaning if contextually used correctly.
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jamessmith4152 · Guest

Hello,

Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a metered service over a network. Cloud computing is a marketing term for technologies that provide computation, software, data access, and storage services that do not require end-user knowledge of the physical location and configuration of the system that delivers the services. A parallel to this concept can be drawn with the electricity grid, wherein end-users consume power without needing to understand the component devices or infrastructure required to provide the service.

Thanks

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anilkamble · Posted: Tue Jan 03, 2012 4:51 pm Post subject:

cloud vps hositng means u can get more and more space and software at very large space.
it can be upto 250gb on cloud server, on normal server u need to pay more for more space.
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hitman · Junior Member Joined: 12 Jan 2012 Posts: 4 Location: USA

Cloud computing is the distribution of processing as a services rather than a product or service, whereby offered options, application, and information are offered to computer systems and other gadgets as a metered services over a system. This might all audio a bit like sci-fi, but this is exactly where we're going with cloud processing. We're not quite there yet, though. We're all still developing our personal atmosphere.Most cloud processing infrastructures contain services offered through offered information companies, which appear to customers as a single point of accessibility for their processing needs.

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KpsGlobal · Junior Member Joined: 25 Jan 2012 Posts: 5

Cloud computing is a technology that uses the internet and central remote servers to maintain data and applications. Cloud computing allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access. This technology allows for much more efficient computing by centralizing storage, memory, processing and bandwidth.
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Vegten · Junior Member Joined: 10 Feb 2012 Posts: 3

Cloud computing is a universal word for something that involves delivering hosted services over the Internet. These services are largely 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 stimulated by the cloud symbol that's frequently used to stand for the Internet in flowcharts and diagrams.
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haresdehan · Junior Member Joined: 28 Apr 2012 Posts: 4

Cloud computing is a metaphor used by Technology or IT Services companies for the delivery of computing requirements as a service to a heterogeneous community of end-recipients. The term cloud theoretically signifies abstraction of technology, resources and its location that are very vital in building integrated computing infrastructure . All Cloud computing models rely heavily on sharing of resources to achieve coherence and economies of scale similar to a utility.
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