Before we move forward and dig into that how does cloud computing work, first let’s understand the concept and meaning of the term “cloud”. Whether you want to become a cloud engineer or you are a fresher who wants to learn all the basics of cloud computing then the post is meant for you. Sometimes to be referred as the “cloud”, cloud computing is a way or technique for the companies as well as individuals to access the digital resources over the internet and that too from anywhere in the world. In cloud computing, information and data is stored on the physical or virtual servers that are maintained as well as controlled by the cloud provider, for example, Amazon and their AWS product. In simple terms, cloud computing is an emerging trend nowadays of the online file access that is being used by the businesses and individual worldwide.
By using the centralized server, expenses can be minimized as it directly eliminates the need to buy various software and also hardware that is needed to run the local servers. Clouds can be private that limits the access to the servers to a specified group and public which can be accessed by any user that logged onto the internet or the virtual public, where the private cloud of the services can be easily attained by using resources of public. For taking advantage of cloud computing one of the most important requirement is high speed internet. There are different types of services that are offered by the cloud computing listed as follow:
- Software as a Service (SaaS) In this type of service, registered software applications are all managed by the provider. Another browser-based access allows individual applications that to be used by the customers even without bothering about server expenses or licensing issue.
- Platform as a Service (PaaS): In this service, provider manages the working platform to run and develop the business applications. It is build so that to support all the stages of creating the web application online, without the additional software that are needed in the local computers.
- Infrastructure as a Service (IaaS): This service of cloud computing can be referred as the enhanced version of the web hosting. Virtual servers with the related data as well as equipment can be easily purchased on the per use basis.
Even though the end user in the cloud computing doesn’t require to get worried about installing and managing all the applications which they don’ know how works, this approach still have some of the drawbacks. So now you will aware that the end user don’t get the control over any software terminal from the cloud, and in real only the side you need will be provided to you. Now let’s understand the idea of cloud computing working.
The idea is basically based on the rehash of the Distributed System. Now imagine simply a client-server relationship in any company. The server is meant for storing the data and programs. The client (employees for this case) access the server to get the data whatever they actually need. So, if we consider server room of the cloud computing company as the Back End where installation, updates, and log processing part is going on, the front end will be the client’s computer that runs on what you need is what you see basis. The client doesn’t require to take care of the server issues, what he do is simply ask to work on some of the particular programs and get the job done and this is what the server provides. So cloud is nothing but a collection of the virtual computers which contains the certain resources on the giant server farms that a user can access easily. Once you get all the idea of how the structure of a simple client and server database works, all you need to do then this add to it to the internet.
The cloud is the collection of all data such as software, apps, storage, that a user can subscribe for and access it at any time by using the internet. Here the backend is like multiple servers which work together each one of them holding the app or a software. This means that the software or the app belongs to the dedicated server. And further, all these dedicated servers are controlled as well as managed by the administrator server. The data that will be stored here will most likely to be encrypted and password protected as well along with the other security levels. Backend’s storage room size depends on number of clients and whether the company is actually going to provide the backup data for the client.
The front end can be referred as the customer/client end of the cloud. The user here approaches to the cloud service provider to subscribe to all their packages. Anytime she/he requires to access the file or run the software or app, the request is accepted by the cloud. It connects to the relevant server and that too in no time, and then you get the app right on your screen.
How does Cloud Computing work?
There are so many servicer providers from where you can easily subscribe to such as Amazon web services or Verizon/Terremark or IBM. Once you get subscribed to that then whenever you need to access to a particular software at that time you just need to log in through the internet and just select the software. One of the important thing that is best for its customers is that you don’t need to download or install anything. Whatever you want to use you just need to do it on the cloud, not on your computer. This also eliminates the cost of downloading the software. You just only need to pay for the service that you use. Updates are no longer for your concerns. This is a most important aspect of the cloud computing as multiple users will be working on the same project but with the different versions of the software and making update can create conflict in the process. The same is applicable to the individuals that are using different operating systems (PC, Linux or Mac). So consider if someone starts a tutorship or they put their entire learning as the modules on cloud system then anyone can access it, access the videos, chat to the professors and much more. This will be very different from the regular e-learning as now you don’t require to go somewhere or install anything and can take advantage of flexible learning routine.
So it will not be wrong to consider it as the combination of the one-way grid computing (data transfer between the client and server only) with the utility computation. A company makes a cloud that a client/user pays for to use it wisely. This is the very basic principle of such type of servers.
Common Examples of Cloud Computing Tech
Cloud computing seems to be a foreign or new concept there is nothing like that as you actually use it in your daily life but you don’t realize it. So here are some of the familiar tasks that are possible through the cloud computing.
- Checking your email from anywhere in the world by logging on to the cloud-based webmail client.
- The second thing that you might do on regular basis is saving the document in the online cloud storage account and after sometimes accessing it at work when required, even though when the original file also resides in your home computer.
- Collaborating with colleagues in a real on the shared spreadsheet that are actually working from the different location.
- It also allows you to rent the software applications and then save all the documents that you create online, rather than purchasing physical software disks and download the contents to your own hard drive.
What makes Cloud Computing different?
The service that is used here by you is provided by someone else and it is also managed for you by someone else on your behalf, how exciting it is as you don’t need to take care of anything rather than just using it efficiently. Like if you are using Google documents you don’t need tow worry about buying the license for the word processing software or to update it on the monthly or yearly basis. Also, you don’t need to take care or worry about the viruses that can affect your computer or create backup of the files, google does all this for you. This is same for the cloud computing also.
It’s on demand
Cloud Services are provided on the basis of available demand and is bought on a “pay as you go” or on the subscription basis. So cloud computing can be bought same as you buy the electricity telephone services or the internet access from the utility company.
Public or Private
Cloud computing comes with the two aspects of its services public as well private as per the requirement of the user. These can be said as the cloud equivalents of the internet or the intranet.
Pros and Cons of Cloud Computing
Like any other technology, cloud computing also has some of the good as well as bad attributes. So let’s go in depth and find out some of the advantages and disadvantages of the Cloud Computing.
Reduced Need for the on-site IT staff
With cloud computing the on-site IT staff requirement is minimized to a good level. As if you have chosen a service provider for your cloud computing needs, then you must have noticed that most of them will guarantee you a high level of the consistent uptime.
As already mentioned above, cloud computing provides you the advantage to buy only that cloud services that you actually need, and also have the option of scaling it up when found necessary. So this means that you don’t require to make large investments that on the physical equipment that might get stolen or breaks down.
Fewer maintenance concerns
While dealing with the physical computer networks, hardware and software part, there is a lot of maintenance that all of them require from your side. So it is the critical as well as costly responsibility to take care of the maintenance of this hardware as well as software parts on regular basis. And with the cloud computing, you need to worry any of the above issues, maintenance or update.
There is a requirement of internet connectivity if one needs to take advantage of cloud computing. So it can be the issue if your internet connection is poor, at that time you won’t be able to access the files efficiently.
If you have started using one cloud computing service and now then want to transfer the files over to some different provider then this process can proved to have a hectic and complicated one. Whereas the process will make the task bit easier but still some of the substantial incompatibility issues can make the process of moving the files between both the providers a bit difficult.
Less Customer Control
Cloud computing also offers the managed service which means that the customers give up the control over what is offered to them.As many of the service providers don’t provide details about their infrastructures to their customers and meanwhile prefer to handle the administration needs on their own.
With that such broad range of the services provided by the cloud, most of the different organizations, as well as individuals, can benefit from leveraging its own power. By working on the principle of remotely sharing and aggregation of the processing power as well as processes, the cloud provides a unique method for all its customers who really want to access the dynamic and high-performing hardware and the software solutions. So with so many services and advantages, some minor disadvantages can be ignored of the cloud computing as it has so much to offer to its customers. Also in coming future cloud will be one of the prominent cloud computing technology from which everyone takes benefit from. So this was all about how does the cloud work, its services and benefits. If you have any query regarding the post you can leave a comment below we will reply to you at the earliest.