Everyone talks about cloud computing, but not about how does cloud computing work. This is because the end user does not need to know how does cloud computing work in order to use it. You do not need to understand how does cloud computing work behind Facebook, Amazon, Twitter, and Google Docs to use them in your business. For the curious, how does cloud computing work is as simple as you want to make it, and it all extends from what the word cloud refers to.
So, how does cloud computing work? It mostly involves banks of computers working together as a single machine. It is this grid of computers that the term cloud actually refers to. This is not a new concept either. The cloud has been with us since the beginning of computers in various forms. What is different is that this collective virtual computer acts like a single machine.
How does cloud computing work with these clusters of computers? Since we are dealing with a virtual machine, the cloud computer utilizes the resources of the cluster of physical computers underneath it. The virtual computer then uses these resources to run your applications. These applications run independently of the server cluster underneath which is why you can scale the virtual computer with ease. The virtual computer and its applications are basically floating in a cloud of resources free of the physical world.
So, how does cloud computing work these server clusters to create the end user experience? To answer that, we must split the cloud into two layers. The first layer is the front-end, or public/end user layer. The front-end is what you interact with. This is the virtual machine. It thinks it is a normal computer so it acts like one. All cloud applications run on the front-end.
The back-end is where the magic happens. It is the how does cloud computing work. The back-end of cloud computing consists of the physical hardware clusters and the software that runs them. This also includes the networking technologies that connect them. These computers are designed to work together. They share resources. They share processes. They act collectively as a single machine: the virtual cloud computer. They are designed to be hot-swappable which means you can connect or disconnect them without turning them or the cluster off. If you need more resources, you just need to plug in a new computer. You do not even have to assign the new computer a task. The cloud creating software does it for you and that is how does cloud computing work.So, how does cloud computing work? It uses networking technologies and specialized software to get seemingly independent computers to act like a single computer. This software manages the entire cluster allocating resources as needed. The software creates a virtual machine which is software that thinks its physical hardware. You then use this virtual machine as if it was a physical computer with your desired operating system and application software. When you access this software, the back-end cloud networking software utilizes the physical resources available to process your requests. You see the finish product on your monitor and that is how does cloud computing work.
You may have been using the cloud for years without realizing it by the virtue of how does cloud computing work. Even the most popular software such as Microsoft Office and QuickBooks are now cloud oriented. There are of course problems with how cloud computing works such as not being to access mission-critical data when your internet connection is down as well as other security concerns. That is truly how cloud computing works.